From 7b05eebe6a66ab7c0a2c6ec391b4f97aa56463b7 Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Sun, 22 May 2016 15:04:37 +0200
Subject: [PATCH] Initial version

---
 .gitignore                                    |    1 +
 .travis.yml                                   |    9 +
 Godeps/Godeps.json                            |  168 +
 Godeps/Readme                                 |    5 +
 Makefile                                      |    9 +
 bindata.go                                    |  235 ++
 config.example.yaml                           |  172 ++
 configfile.go                                 |  328 ++
 configfile_test.go                            |  245 ++
 duplicity_backup_suite_test.go                |   13 +
 help.txt                                      |   22 +
 main.go                                       |  168 +
 .../Luzifer/go_helpers/which/which.go         |   54 +
 vendor/github.com/Luzifer/rconfig/.travis.yml |    8 +
 vendor/github.com/Luzifer/rconfig/LICENSE     |   13 +
 vendor/github.com/Luzifer/rconfig/README.md   |   94 +
 vendor/github.com/Luzifer/rconfig/config.go   |  314 ++
 .../Luzifer/rconfig/vardefault_providers.go   |   27 +
 .../asaskevich/govalidator/.travis.yml        |   14 +
 .../github.com/asaskevich/govalidator/LICENSE |   21 +
 .../asaskevich/govalidator/README.md          |  398 +++
 .../asaskevich/govalidator/arrays.go          |   58 +
 .../asaskevich/govalidator/converter.go       |   49 +
 .../asaskevich/govalidator/error.go           |   31 +
 .../asaskevich/govalidator/numerics.go        |   57 +
 .../asaskevich/govalidator/patterns.go        |   83 +
 .../asaskevich/govalidator/types.go           |  378 +++
 .../asaskevich/govalidator/utils.go           |  213 ++
 .../asaskevich/govalidator/validator.go       |  921 ++++++
 .../asaskevich/govalidator/wercker.yml        |   15 +
 .../github.com/mitchellh/go-homedir/LICENSE   |   21 +
 .../github.com/mitchellh/go-homedir/README.md |   14 +
 .../mitchellh/go-homedir/homedir.go           |  132 +
 .../github.com/nightlyone/lockfile/.gitignore |   27 +
 .../nightlyone/lockfile/.gitmodules           |    3 +
 .../nightlyone/lockfile/.travis.yml           |    2 +
 vendor/github.com/nightlyone/lockfile/LICENSE |   19 +
 .../github.com/nightlyone/lockfile/README.md  |   52 +
 .../nightlyone/lockfile/appveyor.yml          |   12 +
 .../nightlyone/lockfile/lockfile.go           |  125 +
 .../nightlyone/lockfile/lockfile_unix.go      |   28 +
 .../nightlyone/lockfile/lockfile_windows.go   |   32 +
 vendor/github.com/onsi/ginkgo/.gitignore      |    4 +
 vendor/github.com/onsi/ginkgo/.travis.yml     |   15 +
 vendor/github.com/onsi/ginkgo/CHANGELOG.md    |  136 +
 vendor/github.com/onsi/ginkgo/LICENSE         |   20 +
 vendor/github.com/onsi/ginkgo/README.md       |  115 +
 .../github.com/onsi/ginkgo/config/config.go   |  170 ++
 vendor/github.com/onsi/ginkgo/ginkgo_dsl.go   |  536 ++++
 .../internal/codelocation/code_location.go    |   32 +
 .../internal/containernode/container_node.go  |  151 +
 .../onsi/ginkgo/internal/failer/failer.go     |   92 +
 .../ginkgo/internal/leafnodes/benchmarker.go  |   95 +
 .../ginkgo/internal/leafnodes/interfaces.go   |   19 +
 .../onsi/ginkgo/internal/leafnodes/it_node.go |   46 +
 .../ginkgo/internal/leafnodes/measure_node.go |   61 +
 .../onsi/ginkgo/internal/leafnodes/runner.go  |  113 +
 .../ginkgo/internal/leafnodes/setup_nodes.go  |   41 +
 .../ginkgo/internal/leafnodes/suite_nodes.go  |   54 +
 .../synchronized_after_suite_node.go          |   89 +
 .../synchronized_before_suite_node.go         |  182 ++
 .../onsi/ginkgo/internal/remote/aggregator.go |  250 ++
 .../internal/remote/forwarding_reporter.go    |   90 +
 .../internal/remote/output_interceptor.go     |   10 +
 .../remote/output_interceptor_unix.go         |   52 +
 .../internal/remote/output_interceptor_win.go |   33 +
 .../onsi/ginkgo/internal/remote/server.go     |  204 ++
 .../ginkgo/internal/spec/index_computer.go    |   55 +
 .../onsi/ginkgo/internal/spec/spec.go         |  197 ++
 .../onsi/ginkgo/internal/spec/specs.go        |  122 +
 .../ginkgo/internal/specrunner/random_id.go   |   15 +
 .../ginkgo/internal/specrunner/spec_runner.go |  324 ++
 .../onsi/ginkgo/internal/suite/suite.go       |  171 ++
 .../internal/testingtproxy/testing_t_proxy.go |   76 +
 .../ginkgo/internal/writer/fake_writer.go     |   31 +
 .../onsi/ginkgo/internal/writer/writer.go     |   71 +
 .../onsi/ginkgo/reporters/default_reporter.go |   83 +
 .../onsi/ginkgo/reporters/fake_reporter.go    |   59 +
 .../onsi/ginkgo/reporters/junit_reporter.go   |  139 +
 .../onsi/ginkgo/reporters/reporter.go         |   15 +
 .../reporters/stenographer/console_logging.go |   64 +
 .../stenographer/fake_stenographer.go         |  138 +
 .../reporters/stenographer/stenographer.go    |  542 ++++
 .../ginkgo/reporters/teamcity_reporter.go     |   92 +
 .../onsi/ginkgo/types/code_location.go        |   15 +
 .../onsi/ginkgo/types/synchronization.go      |   30 +
 vendor/github.com/onsi/ginkgo/types/types.go  |  143 +
 vendor/github.com/onsi/gomega/.gitignore      |    3 +
 vendor/github.com/onsi/gomega/.travis.yml     |   11 +
 vendor/github.com/onsi/gomega/CHANGELOG.md    |   68 +
 vendor/github.com/onsi/gomega/LICENSE         |   20 +
 vendor/github.com/onsi/gomega/README.md       |   17 +
 .../github.com/onsi/gomega/format/format.go   |  276 ++
 vendor/github.com/onsi/gomega/gomega_dsl.go   |  335 ++
 .../gomega/internal/assertion/assertion.go    |   98 +
 .../asyncassertion/async_assertion.go         |  197 ++
 .../testingtsupport/testing_t_support.go      |   40 +
 vendor/github.com/onsi/gomega/matchers.go     |  345 +++
 .../matchers/assignable_to_type_of_matcher.go |   31 +
 .../onsi/gomega/matchers/be_a_directory.go    |   54 +
 .../onsi/gomega/matchers/be_a_regular_file.go |   54 +
 .../gomega/matchers/be_an_existing_file.go    |   38 +
 .../onsi/gomega/matchers/be_closed_matcher.go |   45 +
 .../onsi/gomega/matchers/be_empty_matcher.go  |   26 +
 .../matchers/be_equivalent_to_matcher.go      |   33 +
 .../onsi/gomega/matchers/be_false_matcher.go  |   25 +
 .../onsi/gomega/matchers/be_nil_matcher.go    |   18 +
 .../gomega/matchers/be_numerically_matcher.go |  119 +
 .../onsi/gomega/matchers/be_sent_matcher.go   |   71 +
 .../gomega/matchers/be_temporally_matcher.go  |   65 +
 .../onsi/gomega/matchers/be_true_matcher.go   |   25 +
 .../onsi/gomega/matchers/be_zero_matcher.go   |   27 +
 .../onsi/gomega/matchers/consist_of.go        |   80 +
 .../matchers/contain_element_matcher.go       |   56 +
 .../matchers/contain_substring_matcher.go     |   37 +
 .../onsi/gomega/matchers/equal_matcher.go     |   27 +
 .../onsi/gomega/matchers/have_key_matcher.go  |   53 +
 .../matchers/have_key_with_value_matcher.go   |   73 +
 .../onsi/gomega/matchers/have_len_matcher.go  |   27 +
 .../gomega/matchers/have_occurred_matcher.go  |   29 +
 .../gomega/matchers/have_prefix_matcher.go    |   35 +
 .../gomega/matchers/have_suffix_matcher.go    |   35 +
 .../gomega/matchers/match_error_matcher.go    |   50 +
 .../gomega/matchers/match_json_matcher.go     |   61 +
 .../gomega/matchers/match_regexp_matcher.go   |   42 +
 .../onsi/gomega/matchers/panic_matcher.go     |   42 +
 .../onsi/gomega/matchers/receive_matcher.go   |  126 +
 .../onsi/gomega/matchers/succeed_matcher.go   |   30 +
 .../goraph/bipartitegraph/bipartitegraph.go   |   41 +
 .../bipartitegraph/bipartitegraphmatching.go  |  161 +
 .../matchers/support/goraph/edge/edge.go      |   61 +
 .../matchers/support/goraph/node/node.go      |    7 +
 .../matchers/support/goraph/util/util.go      |    7 +
 .../onsi/gomega/matchers/type_support.go      |  165 +
 vendor/github.com/onsi/gomega/types/types.go  |   17 +
 vendor/github.com/spf13/pflag/.travis.yml     |   17 +
 vendor/github.com/spf13/pflag/LICENSE         |   28 +
 vendor/github.com/spf13/pflag/README.md       |  256 ++
 vendor/github.com/spf13/pflag/bool.go         |   97 +
 vendor/github.com/spf13/pflag/count.go        |   97 +
 vendor/github.com/spf13/pflag/duration.go     |   86 +
 vendor/github.com/spf13/pflag/flag.go         |  836 +++++
 vendor/github.com/spf13/pflag/float32.go      |   91 +
 vendor/github.com/spf13/pflag/float64.go      |   87 +
 vendor/github.com/spf13/pflag/golangflag.go   |   97 +
 vendor/github.com/spf13/pflag/int.go          |   87 +
 vendor/github.com/spf13/pflag/int32.go        |   91 +
 vendor/github.com/spf13/pflag/int64.go        |   87 +
 vendor/github.com/spf13/pflag/int8.go         |   91 +
 vendor/github.com/spf13/pflag/int_slice.go    |  128 +
 vendor/github.com/spf13/pflag/ip.go           |   96 +
 vendor/github.com/spf13/pflag/ipmask.go       |  122 +
 vendor/github.com/spf13/pflag/ipnet.go        |  100 +
 vendor/github.com/spf13/pflag/string.go       |   82 +
 vendor/github.com/spf13/pflag/string_slice.go |  105 +
 vendor/github.com/spf13/pflag/uint.go         |   91 +
 vendor/github.com/spf13/pflag/uint16.go       |   89 +
 vendor/github.com/spf13/pflag/uint32.go       |   89 +
 vendor/github.com/spf13/pflag/uint64.go       |   91 +
 vendor/github.com/spf13/pflag/uint8.go        |   91 +
 vendor/gopkg.in/yaml.v2/LICENSE               |  188 ++
 vendor/gopkg.in/yaml.v2/LICENSE.libyaml       |   31 +
 vendor/gopkg.in/yaml.v2/README.md             |  131 +
 vendor/gopkg.in/yaml.v2/apic.go               |  742 +++++
 vendor/gopkg.in/yaml.v2/decode.go             |  683 +++++
 vendor/gopkg.in/yaml.v2/emitterc.go           | 1685 ++++++++++
 vendor/gopkg.in/yaml.v2/encode.go             |  306 ++
 vendor/gopkg.in/yaml.v2/parserc.go            | 1096 +++++++
 vendor/gopkg.in/yaml.v2/readerc.go            |  391 +++
 vendor/gopkg.in/yaml.v2/resolve.go            |  203 ++
 vendor/gopkg.in/yaml.v2/scannerc.go           | 2710 +++++++++++++++++
 vendor/gopkg.in/yaml.v2/sorter.go             |  104 +
 vendor/gopkg.in/yaml.v2/writerc.go            |   89 +
 vendor/gopkg.in/yaml.v2/yaml.go               |  346 +++
 vendor/gopkg.in/yaml.v2/yamlh.go              |  716 +++++
 vendor/gopkg.in/yaml.v2/yamlprivateh.go       |  173 ++
 176 files changed, 25611 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 .travis.yml
 create mode 100644 Godeps/Godeps.json
 create mode 100644 Godeps/Readme
 create mode 100644 Makefile
 create mode 100644 bindata.go
 create mode 100644 config.example.yaml
 create mode 100644 configfile.go
 create mode 100644 configfile_test.go
 create mode 100644 duplicity_backup_suite_test.go
 create mode 100644 help.txt
 create mode 100644 main.go
 create mode 100644 vendor/github.com/Luzifer/go_helpers/which/which.go
 create mode 100644 vendor/github.com/Luzifer/rconfig/.travis.yml
 create mode 100644 vendor/github.com/Luzifer/rconfig/LICENSE
 create mode 100644 vendor/github.com/Luzifer/rconfig/README.md
 create mode 100644 vendor/github.com/Luzifer/rconfig/config.go
 create mode 100644 vendor/github.com/Luzifer/rconfig/vardefault_providers.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/.travis.yml
 create mode 100644 vendor/github.com/asaskevich/govalidator/LICENSE
 create mode 100644 vendor/github.com/asaskevich/govalidator/README.md
 create mode 100644 vendor/github.com/asaskevich/govalidator/arrays.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/converter.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/error.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/numerics.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/patterns.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/types.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/utils.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/validator.go
 create mode 100644 vendor/github.com/asaskevich/govalidator/wercker.yml
 create mode 100644 vendor/github.com/mitchellh/go-homedir/LICENSE
 create mode 100644 vendor/github.com/mitchellh/go-homedir/README.md
 create mode 100644 vendor/github.com/mitchellh/go-homedir/homedir.go
 create mode 100644 vendor/github.com/nightlyone/lockfile/.gitignore
 create mode 100644 vendor/github.com/nightlyone/lockfile/.gitmodules
 create mode 100644 vendor/github.com/nightlyone/lockfile/.travis.yml
 create mode 100644 vendor/github.com/nightlyone/lockfile/LICENSE
 create mode 100644 vendor/github.com/nightlyone/lockfile/README.md
 create mode 100644 vendor/github.com/nightlyone/lockfile/appveyor.yml
 create mode 100644 vendor/github.com/nightlyone/lockfile/lockfile.go
 create mode 100644 vendor/github.com/nightlyone/lockfile/lockfile_unix.go
 create mode 100644 vendor/github.com/nightlyone/lockfile/lockfile_windows.go
 create mode 100644 vendor/github.com/onsi/ginkgo/.gitignore
 create mode 100644 vendor/github.com/onsi/ginkgo/.travis.yml
 create mode 100644 vendor/github.com/onsi/ginkgo/CHANGELOG.md
 create mode 100644 vendor/github.com/onsi/ginkgo/LICENSE
 create mode 100644 vendor/github.com/onsi/ginkgo/README.md
 create mode 100644 vendor/github.com/onsi/ginkgo/config/config.go
 create mode 100644 vendor/github.com/onsi/ginkgo/ginkgo_dsl.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/codelocation/code_location.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/containernode/container_node.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/failer/failer.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/benchmarker.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/interfaces.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/it_node.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/measure_node.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/runner.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/setup_nodes.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/suite_nodes.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/synchronized_after_suite_node.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/leafnodes/synchronized_before_suite_node.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/remote/aggregator.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/remote/forwarding_reporter.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor_unix.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor_win.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/remote/server.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/spec/index_computer.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/spec/spec.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/spec/specs.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/specrunner/random_id.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/specrunner/spec_runner.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/suite/suite.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/testingtproxy/testing_t_proxy.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/writer/fake_writer.go
 create mode 100644 vendor/github.com/onsi/ginkgo/internal/writer/writer.go
 create mode 100644 vendor/github.com/onsi/ginkgo/reporters/default_reporter.go
 create mode 100644 vendor/github.com/onsi/ginkgo/reporters/fake_reporter.go
 create mode 100644 vendor/github.com/onsi/ginkgo/reporters/junit_reporter.go
 create mode 100644 vendor/github.com/onsi/ginkgo/reporters/reporter.go
 create mode 100644 vendor/github.com/onsi/ginkgo/reporters/stenographer/console_logging.go
 create mode 100644 vendor/github.com/onsi/ginkgo/reporters/stenographer/fake_stenographer.go
 create mode 100644 vendor/github.com/onsi/ginkgo/reporters/stenographer/stenographer.go
 create mode 100644 vendor/github.com/onsi/ginkgo/reporters/teamcity_reporter.go
 create mode 100644 vendor/github.com/onsi/ginkgo/types/code_location.go
 create mode 100644 vendor/github.com/onsi/ginkgo/types/synchronization.go
 create mode 100644 vendor/github.com/onsi/ginkgo/types/types.go
 create mode 100644 vendor/github.com/onsi/gomega/.gitignore
 create mode 100644 vendor/github.com/onsi/gomega/.travis.yml
 create mode 100644 vendor/github.com/onsi/gomega/CHANGELOG.md
 create mode 100644 vendor/github.com/onsi/gomega/LICENSE
 create mode 100644 vendor/github.com/onsi/gomega/README.md
 create mode 100644 vendor/github.com/onsi/gomega/format/format.go
 create mode 100644 vendor/github.com/onsi/gomega/gomega_dsl.go
 create mode 100644 vendor/github.com/onsi/gomega/internal/assertion/assertion.go
 create mode 100644 vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go
 create mode 100644 vendor/github.com/onsi/gomega/internal/testingtsupport/testing_t_support.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/assignable_to_type_of_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_a_directory.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_a_regular_file.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_an_existing_file.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_closed_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_empty_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_equivalent_to_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_false_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_nil_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_numerically_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_sent_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_temporally_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_true_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/be_zero_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/consist_of.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/contain_element_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/contain_substring_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/equal_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/have_key_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/have_key_with_value_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/have_len_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/have_occurred_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/have_prefix_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/have_suffix_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/match_error_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/match_json_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/match_regexp_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/panic_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/receive_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/succeed_matcher.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/support/goraph/bipartitegraph/bipartitegraph.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/support/goraph/bipartitegraph/bipartitegraphmatching.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/support/goraph/edge/edge.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/support/goraph/node/node.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/support/goraph/util/util.go
 create mode 100644 vendor/github.com/onsi/gomega/matchers/type_support.go
 create mode 100644 vendor/github.com/onsi/gomega/types/types.go
 create mode 100644 vendor/github.com/spf13/pflag/.travis.yml
 create mode 100644 vendor/github.com/spf13/pflag/LICENSE
 create mode 100644 vendor/github.com/spf13/pflag/README.md
 create mode 100644 vendor/github.com/spf13/pflag/bool.go
 create mode 100644 vendor/github.com/spf13/pflag/count.go
 create mode 100644 vendor/github.com/spf13/pflag/duration.go
 create mode 100644 vendor/github.com/spf13/pflag/flag.go
 create mode 100644 vendor/github.com/spf13/pflag/float32.go
 create mode 100644 vendor/github.com/spf13/pflag/float64.go
 create mode 100644 vendor/github.com/spf13/pflag/golangflag.go
 create mode 100644 vendor/github.com/spf13/pflag/int.go
 create mode 100644 vendor/github.com/spf13/pflag/int32.go
 create mode 100644 vendor/github.com/spf13/pflag/int64.go
 create mode 100644 vendor/github.com/spf13/pflag/int8.go
 create mode 100644 vendor/github.com/spf13/pflag/int_slice.go
 create mode 100644 vendor/github.com/spf13/pflag/ip.go
 create mode 100644 vendor/github.com/spf13/pflag/ipmask.go
 create mode 100644 vendor/github.com/spf13/pflag/ipnet.go
 create mode 100644 vendor/github.com/spf13/pflag/string.go
 create mode 100644 vendor/github.com/spf13/pflag/string_slice.go
 create mode 100644 vendor/github.com/spf13/pflag/uint.go
 create mode 100644 vendor/github.com/spf13/pflag/uint16.go
 create mode 100644 vendor/github.com/spf13/pflag/uint32.go
 create mode 100644 vendor/github.com/spf13/pflag/uint64.go
 create mode 100644 vendor/github.com/spf13/pflag/uint8.go
 create mode 100644 vendor/gopkg.in/yaml.v2/LICENSE
 create mode 100644 vendor/gopkg.in/yaml.v2/LICENSE.libyaml
 create mode 100644 vendor/gopkg.in/yaml.v2/README.md
 create mode 100644 vendor/gopkg.in/yaml.v2/apic.go
 create mode 100644 vendor/gopkg.in/yaml.v2/decode.go
 create mode 100644 vendor/gopkg.in/yaml.v2/emitterc.go
 create mode 100644 vendor/gopkg.in/yaml.v2/encode.go
 create mode 100644 vendor/gopkg.in/yaml.v2/parserc.go
 create mode 100644 vendor/gopkg.in/yaml.v2/readerc.go
 create mode 100644 vendor/gopkg.in/yaml.v2/resolve.go
 create mode 100644 vendor/gopkg.in/yaml.v2/scannerc.go
 create mode 100644 vendor/gopkg.in/yaml.v2/sorter.go
 create mode 100644 vendor/gopkg.in/yaml.v2/writerc.go
 create mode 100644 vendor/gopkg.in/yaml.v2/yaml.go
 create mode 100644 vendor/gopkg.in/yaml.v2/yamlh.go
 create mode 100644 vendor/gopkg.in/yaml.v2/yamlprivateh.go

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8d7b786
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+duplicity-backup
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..ceed82a
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,9 @@
+language: go
+
+go:
+  - 1.5
+  - 1.6
+  - tip
+
+install: make setup-testenv
+script: make test
diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json
new file mode 100644
index 0000000..f68e419
--- /dev/null
+++ b/Godeps/Godeps.json
@@ -0,0 +1,168 @@
+{
+	"ImportPath": "github.com/Luzifer/duplicity-backup",
+	"GoVersion": "go1.6",
+	"GodepVersion": "v62",
+	"Deps": [
+		{
+			"ImportPath": "github.com/Luzifer/go_helpers/which",
+			"Comment": "v1.3.0",
+			"Rev": "6abbbafaada02b63dd8f9e185921fd8b3c35b6c2"
+		},
+		{
+			"ImportPath": "github.com/Luzifer/rconfig",
+			"Comment": "v1.0.3-2-g2677653",
+			"Rev": "26776536e61487fdffbd3ce87f827177a5903f98"
+		},
+		{
+			"ImportPath": "github.com/asaskevich/govalidator",
+			"Comment": "v4-6-gdf81827",
+			"Rev": "df81827fdd59d8b4fb93d8910b286ab7a3919520"
+		},
+		{
+			"ImportPath": "github.com/mitchellh/go-homedir",
+			"Rev": "981ab348d865cf048eb7d17e78ac7192632d8415"
+		},
+		{
+			"ImportPath": "github.com/nightlyone/lockfile",
+			"Rev": "b30dcbfa86e3a1eaa4e6622de2ce57be2c138c10"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/config",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/codelocation",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/containernode",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/failer",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/leafnodes",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/remote",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/spec",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/specrunner",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/suite",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/testingtproxy",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/internal/writer",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/reporters",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/reporters/stenographer",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/ginkgo/types",
+			"Comment": "v1.2.0-14-g1b59c57",
+			"Rev": "1b59c57df76ede42c08590546916e6a18685857d"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/format",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/internal/assertion",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/internal/asyncassertion",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/internal/testingtsupport",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/matchers",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/matchers/support/goraph/bipartitegraph",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/matchers/support/goraph/edge",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/matchers/support/goraph/node",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/matchers/support/goraph/util",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/onsi/gomega/types",
+			"Comment": "v1.0-55-g6331bf5",
+			"Rev": "6331bf5a5b5e7a832348789eb3cedff7a6917103"
+		},
+		{
+			"ImportPath": "github.com/spf13/pflag",
+			"Rev": "b084184666e02084b8ccb9b704bf0d79c466eb1d"
+		},
+		{
+			"ImportPath": "gopkg.in/yaml.v2",
+			"Rev": "53feefa2559fb8dfa8d81baad31be332c97d6c77"
+		}
+	]
+}
diff --git a/Godeps/Readme b/Godeps/Readme
new file mode 100644
index 0000000..4cdaa53
--- /dev/null
+++ b/Godeps/Readme
@@ -0,0 +1,5 @@
+This directory tree is generated automatically by godep.
+
+Please do not edit.
+
+See https://github.com/tools/godep for more information.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c9e2dd3
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,9 @@
+bindata:
+		go-bindata help.txt
+
+setup-testenv:
+		go get github.com/onsi/ginkgo/ginkgo
+		go get github.com/onsi/gomega
+
+test:
+		$(GOPATH)/bin/ginkgo
diff --git a/bindata.go b/bindata.go
new file mode 100644
index 0000000..dcc815a
--- /dev/null
+++ b/bindata.go
@@ -0,0 +1,235 @@
+// Code generated by go-bindata.
+// sources:
+// help.txt
+// DO NOT EDIT!
+
+package main
+
+import (
+	"bytes"
+	"compress/gzip"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+func bindataRead(data []byte, name string) ([]byte, error) {
+	gz, err := gzip.NewReader(bytes.NewBuffer(data))
+	if err != nil {
+		return nil, fmt.Errorf("Read %q: %v", name, err)
+	}
+
+	var buf bytes.Buffer
+	_, err = io.Copy(&buf, gz)
+	clErr := gz.Close()
+
+	if err != nil {
+		return nil, fmt.Errorf("Read %q: %v", name, err)
+	}
+	if clErr != nil {
+		return nil, err
+	}
+
+	return buf.Bytes(), nil
+}
+
+type asset struct {
+	bytes []byte
+	info  os.FileInfo
+}
+
+type bindataFileInfo struct {
+	name    string
+	size    int64
+	mode    os.FileMode
+	modTime time.Time
+}
+
+func (fi bindataFileInfo) Name() string {
+	return fi.name
+}
+func (fi bindataFileInfo) Size() int64 {
+	return fi.size
+}
+func (fi bindataFileInfo) Mode() os.FileMode {
+	return fi.mode
+}
+func (fi bindataFileInfo) ModTime() time.Time {
+	return fi.modTime
+}
+func (fi bindataFileInfo) IsDir() bool {
+	return false
+}
+func (fi bindataFileInfo) Sys() interface{} {
+	return nil
+}
+
+var _helpTxt = []byte("\x1f\x8b\x08\x00\x00\x09\x6e\x88\x00\xff\xac\x93\x3f\x73\xdb\x30\x0c\xc5\x77\x7d\x0a\x8c\xed\xa0\x64\xcf\xd6\x8b\x2f\x53\x87\x5e\x7b\xbd\x0e\x3e\x0f\x30\x05\x49\xbc\xd0\xa4\x0e\x04\x93\xda\x43\x3f\x7b\xc1\x3f\x76\xe4\xa4\xde\xca\x4d\xe4\xc3\x8f\x4f\x8f\xc0\x2f\xc6\x65\x21\x06\xe4\x90\xfc\x00\x43\x5a\x9c\x35\x56\x8e\x20\x01\x0c\x13\x0a\xc1\x1e\xcd\x73\x5a\xe0\xd5\xca\x0c\x8e\x62\x84\x19\x4f\x27\x47\x5d\xf7\x33\xe2\x44\x0f\x1d\xbc\x55\xf5\x4d\xbb\x35\xe1\x70\x40\x3f\xec\xba\xee\xcb\x0b\x5a\x87\x7b\x47\xf0\x58\xf7\x62\xae\x68\xba\x1b\xeb\xf1\xea\x62\x34\x26\xf0\x60\xfd\x94\x3d\xc9\x7c\xd9\xe7\xa4\x6e\x94\x65\x1c\xa1\xbf\x09\xdb\x90\x23\x65\xe5\x3a\xfa\x2d\x8c\x9e\x42\x8a\xab\xff\x1c\x6d\xa5\x38\x1b\xa5\x37\x89\x99\xbc\xf4\x65\x73\x4d\xf9\xaa\xa7\xb1\x40\xea\x91\x09\x5e\xd0\x7a\x1a\xc0\xfa\x95\x27\xe5\x30\x45\x09\x4c\xb0\xcd\x42\x58\x50\xe6\x1d\x6c\x05\x79\x22\xd9\x01\x7c\xaf\xa7\x11\xa2\xfe\x8f\xab\x34\xb8\x87\xc1\x72\xf9\xb9\x22\xcb\x5f\x64\x54\x76\x5c\xe3\x2e\x88\xf5\xba\xe0\xe8\x85\xf8\x28\xf3\x39\xa4\x8f\x9c\x28\x28\x29\xde\x0a\xfc\x47\xd2\xa7\x61\x7b\xaa\x39\x35\x6d\x18\xaf\xd2\xa6\x25\x44\xdb\x68\x7a\x9b\x1d\x8f\x37\x9f\x2f\x1c\x16\xcc\xae\x5a\x69\x0e\x4b\x53\x8d\x80\x93\x66\x16\x05\x5c\x30\xe8\x5a\xf2\xdd\x93\xc3\xa9\xf4\x44\xdf\xab\x70\xb4\x53\xdf\x42\xe9\xc7\x6b\x68\x3e\x4b\x8c\x62\x83\x87\x31\x68\x60\xb3\x5d\x3f\xe4\x6b\xed\xe4\xee\x96\xab\xf3\xfa\xb4\xa1\x11\x93\x93\x07\xf8\x73\x7f\x57\x6f\xbc\x7f\xdf\xc0\x77\x47\x3c\xb8\xcf\xc5\x93\x7a\x7d\xbe\x38\x72\xd7\xa8\xa7\xbc\xad\x79\xcf\xc1\x0d\x25\xab\x2c\x7e\xf3\xd6\x1c\x69\xdf\x91\x49\xd9\xf6\xff\xf1\x96\x2f\xa9\xde\x06\xda\xa7\x29\xfb\x1a\x3e\xa2\xbe\xb1\xf5\xb2\x8a\xa7\x4d\x64\xcc\x7e\x43\x92\x25\x49\x45\xb0\xf4\x9c\x7c\x86\xf8\xf7\x88\x4d\x00\x04\xd1\x16\x2b\x8a\x3c\xff\x5a\x08\x66\x46\x3f\x95\x91\xe9\x7b\xed\x83\x98\x9f\xe3\x5f\xab\x18\xa8\x33\xd3\xc6\x0a\x16\x0e\x13\xe3\x01\xce\x65\xea\x47\xc3\xb1\x12\xbb\xbf\x01\x00\x00\xff\xff\xd7\x01\xa8\x37\x87\x04\x00\x00")
+
+func helpTxtBytes() ([]byte, error) {
+	return bindataRead(
+		_helpTxt,
+		"help.txt",
+	)
+}
+
+func helpTxt() (*asset, error) {
+	bytes, err := helpTxtBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	info := bindataFileInfo{name: "help.txt", size: 1159, mode: os.FileMode(420), modTime: time.Unix(1463914687, 0)}
+	a := &asset{bytes: bytes, info: info}
+	return a, nil
+}
+
+// Asset loads and returns the asset for the given name.
+// It returns an error if the asset could not be found or
+// could not be loaded.
+func Asset(name string) ([]byte, error) {
+	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	if f, ok := _bindata[cannonicalName]; ok {
+		a, err := f()
+		if err != nil {
+			return nil, fmt.Errorf("Asset %s can't read by error: %v", name, err)
+		}
+		return a.bytes, nil
+	}
+	return nil, fmt.Errorf("Asset %s not found", name)
+}
+
+// MustAsset is like Asset but panics when Asset would return an error.
+// It simplifies safe initialization of global variables.
+func MustAsset(name string) []byte {
+	a, err := Asset(name)
+	if err != nil {
+		panic("asset: Asset(" + name + "): " + err.Error())
+	}
+
+	return a
+}
+
+// AssetInfo loads and returns the asset info for the given name.
+// It returns an error if the asset could not be found or
+// could not be loaded.
+func AssetInfo(name string) (os.FileInfo, error) {
+	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	if f, ok := _bindata[cannonicalName]; ok {
+		a, err := f()
+		if err != nil {
+			return nil, fmt.Errorf("AssetInfo %s can't read by error: %v", name, err)
+		}
+		return a.info, nil
+	}
+	return nil, fmt.Errorf("AssetInfo %s not found", name)
+}
+
+// AssetNames returns the names of the assets.
+func AssetNames() []string {
+	names := make([]string, 0, len(_bindata))
+	for name := range _bindata {
+		names = append(names, name)
+	}
+	return names
+}
+
+// _bindata is a table, holding each asset generator, mapped to its name.
+var _bindata = map[string]func() (*asset, error){
+	"help.txt": helpTxt,
+}
+
+// AssetDir returns the file names below a certain
+// directory embedded in the file by go-bindata.
+// For example if you run go-bindata on data/... and data contains the
+// following hierarchy:
+//     data/
+//       foo.txt
+//       img/
+//         a.png
+//         b.png
+// then AssetDir("data") would return []string{"foo.txt", "img"}
+// AssetDir("data/img") would return []string{"a.png", "b.png"}
+// AssetDir("foo.txt") and AssetDir("notexist") would return an error
+// AssetDir("") will return []string{"data"}.
+func AssetDir(name string) ([]string, error) {
+	node := _bintree
+	if len(name) != 0 {
+		cannonicalName := strings.Replace(name, "\\", "/", -1)
+		pathList := strings.Split(cannonicalName, "/")
+		for _, p := range pathList {
+			node = node.Children[p]
+			if node == nil {
+				return nil, fmt.Errorf("Asset %s not found", name)
+			}
+		}
+	}
+	if node.Func != nil {
+		return nil, fmt.Errorf("Asset %s not found", name)
+	}
+	rv := make([]string, 0, len(node.Children))
+	for childName := range node.Children {
+		rv = append(rv, childName)
+	}
+	return rv, nil
+}
+
+type bintree struct {
+	Func     func() (*asset, error)
+	Children map[string]*bintree
+}
+var _bintree = &bintree{nil, map[string]*bintree{
+	"help.txt": &bintree{helpTxt, map[string]*bintree{}},
+}}
+
+// RestoreAsset restores an asset under the given directory
+func RestoreAsset(dir, name string) error {
+	data, err := Asset(name)
+	if err != nil {
+		return err
+	}
+	info, err := AssetInfo(name)
+	if err != nil {
+		return err
+	}
+	err = os.MkdirAll(_filePath(dir, filepath.Dir(name)), os.FileMode(0755))
+	if err != nil {
+		return err
+	}
+	err = ioutil.WriteFile(_filePath(dir, name), data, info.Mode())
+	if err != nil {
+		return err
+	}
+	err = os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// RestoreAssets restores an asset under the given directory recursively
+func RestoreAssets(dir, name string) error {
+	children, err := AssetDir(name)
+	// File
+	if err != nil {
+		return RestoreAsset(dir, name)
+	}
+	// Dir
+	for _, child := range children {
+		err = RestoreAssets(dir, filepath.Join(name, child))
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func _filePath(dir, name string) string {
+	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
+}
+
diff --git a/config.example.yaml b/config.example.yaml
new file mode 100644
index 0000000..a3032ce
--- /dev/null
+++ b/config.example.yaml
@@ -0,0 +1,172 @@
+###
+# Backup source
+###
+#
+# Root of the backup to create. If no explicit excludes or includes are
+# defined all files inside this directory will be backed up.
+root: /home
+
+# Hostname for notifications (if left out the hostname of the machine
+# is used for this.
+#hostname: mystation
+
+###
+# Backup destination
+###
+#
+# Destination for the backup. Check the duplicity man-page for all
+# possible destinations to use. 
+dest: s3+http://foobar-backup-bucket/backup-folder/
+
+# Some examples of destinations usable for your backup:
+#dest: ftp://user[:password]@other.host[:port]/some_dir
+#dest: rsync://user@host.com[:port]//absolute_path
+#dest: ssh://user[:password]@other.host[:port]/[/]some_dir
+
+# The "ftp_password" is used for several backends despite the options
+# name. You can use this option instead of passing the password in the
+# `dest` parameter as that one is visible in the process list during
+# the backup is running.
+#ftp_password: password
+
+###
+# Amazon WebServices S3 configuration
+###
+#
+# Uncomment the lines in this section if you're using Amazon S3
+aws:
+#  access_key_id: foobar_aws_key_id
+#  secret_access_key: foobar_aws_access_key
+
+# Without setting the storage class the standard storage is used. With
+# this option you can switch to "infrequent access" (--s3-use-ia) or
+# "reduced redundancy" (--s3-use-rrs) storage class.
+#  storage_class: --s3-use-ia
+
+###
+# Google Cloud Storage configuration
+###
+#
+# Uncomment the lines in this section if you're using GCS
+google_cloud:
+#  access_key_id: foobar_gcs_key_id
+#  secret_access_key: foobar_gcs_secret_id
+
+###
+# OpenStack Object Storage (Swift) configuration
+###
+#
+# Uncomment the lines in this section if you're using OpenStack
+swift:
+#  username: foobar_swift_tenant:foobar_swift_username
+#  password: foobar_swift_password
+#  auth_url: foobar_swift_authurl
+#  auth_version: 2
+
+###
+# Include list of directories
+###
+#
+# Specify directories inside your `root` to backup only these ones
+# You can't specify directories outside the root. If you want to backup
+# all the data inside the root leave this list empty.
+inclist:
+  - /home/myuser/projects
+
+###
+# Exclude list of directories
+###
+#
+# Specify directories inside your `root` to exclude these ones
+# You can't specify directories outside the root. If you want to backup
+# all the data inside the root leave this list empty.
+exclist:
+  - /home/muser/projects/testproject
+
+###
+# Other file selection options
+###
+# 
+# Instead managing the inclist / exclist parameters in this file you
+# can write a text file containing lines with +/- patterns to include
+# or exclude files and directories from the backup.
+# See http://duplicity.nongnu.org/duplicity.1.html#sect9 for details
+#incexcfile: /home/myuser/.config/backup-files.txt
+
+# Exclude all device files. This can be useful for security/permissions
+# reasons or if rdiff-backup is not handling device files correctly.
+#excdevicefiles: true
+
+###
+# Encryption configuration
+###
+#
+encryption:
+# Enable / disable encryption of your backup. If you enable encryption
+# you either need to specify a password or a GPG key.
+  enable: true
+
+# If you're using a `gpg_sign_key` to sign your backup this password is
+# used to unlock the GPG key. If you're not using a GPG key it is used
+# to symmetrically encrypt the backup.
+  passphrase: foobar_gpg_passphrase
+
+# Specify the GPG key(s) to use for encryption / signing the backup.
+# You may use different keys for those tasks. If you specify a signing
+# key you need to specify the password above to unlock the key.
+#  gpg_encryption_key: foobar_gpg_key
+#  gpg_sign_key: foobar_gpg_key
+
+# If you want to hide the GPG key IDs for security reasons you can
+# enable this option.
+#  hide_key_id: true
+
+# You can specify the keyring which contains your above specified keys
+# in case they are not present in the default keyring.
+#  secret_keyring: /home/myuser/.gnupg/duplicity.gpg
+
+###
+# Static backup options
+###
+#
+# Here you can specify other options for duplicity not handled in this
+# configuration file. Reference is the manpage of duplicity. Please
+# ensure you're specifying the options in command array format.
+static_options: ["--full-if-older-than", "14D", "--s3-use-new-style"]
+
+###
+# Backup cleanup options
+###
+#
+cleanup:
+# Chose the cleanup type and the configured value for that cleanup type:
+# remove-older-than <time>
+# remove-all-but-n-full <count>
+# remove-all-inc-of-but-n-full <count>
+# none
+  type: remove-all-but-n-full
+  value: 4
+
+###
+# Logging
+###
+#
+# Set the directory the logs are written to
+logdir: /tmp/duplicity/
+
+###
+# Nofification configuration
+###
+#
+# Uncomment and configure your preferred notification channel
+notifications:
+#  slack:
+#    hook_url: https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX
+#    channel: "#general"
+#    username: duplicity-backup
+#    emoji: :package:
+#  mondash:
+#    board: yourboardurl
+#    token: yoursecrettoken
+#    metric: duplicity backup (%h)
+#    instance: https://mondash.org/
diff --git a/configfile.go b/configfile.go
new file mode 100644
index 0000000..3f38cfe
--- /dev/null
+++ b/configfile.go
@@ -0,0 +1,328 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"strconv"
+
+	valid "github.com/asaskevich/govalidator"
+	"gopkg.in/yaml.v2"
+)
+
+type configFile struct {
+	RootPath    string `yaml:"root" valid:"required"`
+	Hostname    string `yaml:"hostname"`
+	Destination string `yaml:"dest" valid:"required"`
+	FTPPassword string `yaml:"ftp_password"`
+	AWS         struct {
+		AccessKeyID     string `yaml:"access_key_id"`
+		SecretAccessKey string `yaml:"secret_access_key"`
+		StorageClass    string `yaml:"storage_class"`
+	} `yaml:"aws"`
+	GoogleCloud struct {
+		AccessKeyID     string `yaml:"access_key_id"`
+		SecretAccessKey string `yaml:"secret_access_key"`
+	} `yaml:"google_cloud"`
+	Swift struct {
+		Username    string `yaml:"username"`
+		Password    string `yaml:"password"`
+		AuthURL     string `yaml:"auth_url"`
+		AuthVersion int    `yaml:"auth_version"`
+	} `yaml:"swift"`
+	Include            []string `yaml:"inclist"`
+	Exclude            []string `yaml:"exclist"`
+	IncExcFile         string   `yaml:"incexcfile"`
+	ExcludeDeviceFiles bool     `yaml:"excdevicefiles"`
+	Encryption         struct {
+		Enable           bool   `yaml:"enable"`
+		Passphrase       string `yaml:"passphrase"`
+		GPGEncryptionKey string `yaml:"gpg_encryption_key"`
+		GPGSignKey       string `yaml:"gpg_sign_key"`
+		HideKeyID        bool   `yaml:"hide_key_id"`
+		SecretKeyRing    string `yaml:"secret_keyring"`
+	} `yaml:"encryption"`
+	StaticBackupOptions []string `yaml:"static_options"`
+	Cleanup             struct {
+		Type  string `yaml:"type"`
+		Value string `yaml:"value"`
+	} `yaml:"cleanup"`
+	LogDirectory  string `yaml:"logdir" valid:"required"`
+	Notifications struct {
+		Slack struct {
+			HookURL  string `yaml:"hook_url"`
+			Channel  string `yaml:"channel"`
+			Username string `yaml:"username"`
+			Emoji    string `yaml:"emoji"`
+		} `yaml:"slack"`
+		MonDash struct {
+			Board    string `yaml:"board"`
+			Token    string `yaml:"token"`
+			Metric   string `yaml:"metric"`
+			Instance string `yaml:"instance"`
+		} `yaml:"mondash"`
+	} `yaml:"notifications"`
+}
+
+func (c *configFile) validate() error {
+	result, err := valid.ValidateStruct(c)
+	if !result || err != nil {
+		return err
+	}
+
+	if c.Encryption.Enable && c.Encryption.GPGSignKey != "" && c.Encryption.Passphrase == "" {
+		return errors.New("With gpg_sign_key passphrase is required")
+	}
+
+	if c.Encryption.Enable && c.Encryption.GPGEncryptionKey == "" && c.Encryption.Passphrase == "" {
+		return errors.New("Encryption is enabled but no encryption key or passphrase is specified")
+	}
+
+	if c.Destination[0:2] == "s3" && (c.AWS.AccessKeyID == "" || c.AWS.SecretAccessKey == "") {
+		return errors.New("Destination is S3 but AWS credentials are not configured")
+	}
+
+	if c.Destination[0:2] == "gs" && (c.GoogleCloud.AccessKeyID == "" || c.GoogleCloud.SecretAccessKey == "") {
+		return errors.New("Destination is S3 but AWS credentials are not configured")
+	}
+
+	if _, err := os.Stat(c.IncExcFile); c.IncExcFile != "" && err == os.ErrNotExist {
+		return errors.New("Specified incexcfile does not exist")
+	}
+
+	return nil
+}
+
+func loadConfigFile(in io.Reader) (*configFile, error) {
+	fileContent, err := ioutil.ReadAll(in)
+	if err != nil {
+		return nil, err
+	}
+
+	res := &configFile{}
+	if err := yaml.Unmarshal(fileContent, res); err != nil {
+		return nil, err
+	}
+
+	return res, res.validate()
+}
+
+func (c *configFile) GenerateCommand(argv []string, time string) (commandLine []string, env []string, err error) {
+	var (
+		tmpArg, tmpEnv     []string
+		option, root, dest string
+		addTime            bool
+		command            = argv[0]
+	)
+
+	switch command {
+	case "backup":
+		option = ""
+		root = c.RootPath
+		dest = c.Destination
+		commandLine, env, err = c.generateFullCommand(option, time, root, dest, addTime, "")
+	case "cleanup":
+		option = "cleanup"
+		commandLine, env, err = c.generateLiteCommand(option, time, addTime)
+	case "list-current-files":
+		option = "list-current-files"
+		commandLine, env, err = c.generateLiteCommand(option, time, addTime)
+	case "restore":
+		addTime = true
+		option = "restore"
+		root = c.Destination
+		restoreFile := ""
+
+		if len(argv) == 3 {
+			restoreFile = argv[1]
+			dest = argv[2]
+		} else if len(argv) == 2 {
+			dest = argv[1]
+		} else {
+			err = errors.New("You need to specify one ore more parameters. See help message.")
+			return
+		}
+
+		commandLine, env, err = c.generateFullCommand(option, time, root, dest, addTime, restoreFile)
+	case "status":
+		option = "collection-status"
+		commandLine, env, err = c.generateLiteCommand(option, time, addTime)
+	case "verify":
+		option = "verify"
+		root = c.Destination
+		dest = c.RootPath
+		commandLine, env, err = c.generateFullCommand(option, time, root, dest, addTime, "")
+	case "__remove_old":
+		commandLine, env, err = c.generateRemoveCommand()
+	default:
+		err = fmt.Errorf("Did not understand command '%s', please see 'help' for details what to do.", command)
+		return
+	}
+
+	// Add destination credentials
+	tmpEnv = c.generateCredentialExport()
+	env = append(env, tmpEnv...)
+
+	// Clean empty entries from the list
+	tmpArg = []string{}
+	tmpEnv = []string{}
+
+	for _, i := range commandLine {
+		if i != "" {
+			tmpArg = append(tmpArg, i)
+		}
+	}
+
+	for _, i := range env {
+		if i != "" {
+			tmpEnv = append(tmpEnv, i)
+		}
+	}
+
+	commandLine = tmpArg
+	env = tmpEnv
+
+	return
+}
+
+func (c *configFile) generateCredentialExport() (env []string) {
+	if c.AWS.AccessKeyID != "" {
+		env = append(env, "AWS_ACCESS_KEY_ID="+c.AWS.AccessKeyID)
+		env = append(env, "AWS_SECRET_ACCESS_KEY="+c.AWS.SecretAccessKey)
+	}
+	if c.GoogleCloud.AccessKeyID != "" {
+		env = append(env, "GS_ACCESS_KEY_ID="+c.GoogleCloud.AccessKeyID)
+		env = append(env, "GS_SECRET_ACCESS_KEY="+c.GoogleCloud.SecretAccessKey)
+	}
+	if c.Swift.Username != "" {
+		env = append(env, "SWIFT_USERNAME="+c.Swift.Username)
+		env = append(env, "SWIFT_PASSWORD="+c.Swift.Password)
+		env = append(env, "SWIFT_AUTHURL="+c.Swift.AuthURL)
+		env = append(env, "SWIFT_AUTHVERSION="+strconv.FormatInt(int64(c.Swift.AuthVersion), 10))
+	}
+	if c.FTPPassword != "" {
+		env = append(env, "FTP_PASSWORD="+c.FTPPassword)
+	}
+
+	return
+}
+
+func (c *configFile) generateRemoveCommand() (commandLine []string, env []string, err error) {
+	var tmpArg, tmpEnv []string
+	// Assemble command
+	commandLine = append(commandLine, c.Cleanup.Type, c.Cleanup.Value)
+	// Static Options
+	commandLine = append(commandLine, c.StaticBackupOptions...)
+	// Encryption options
+	tmpArg, tmpEnv = c.generateEncryption(c.Cleanup.Type)
+	commandLine = append(commandLine, tmpArg...)
+	env = append(env, tmpEnv...)
+	// Enforce cleanup
+	commandLine = append(commandLine, "--force")
+	// Remote repo
+	commandLine = append(commandLine, c.Destination)
+
+	return
+}
+
+func (c *configFile) generateLiteCommand(option, time string, addTime bool) (commandLine []string, env []string, err error) {
+	var tmpArg, tmpEnv []string
+	// Assemble command
+	commandLine = append(commandLine, option)
+	// Static Options
+	commandLine = append(commandLine, c.StaticBackupOptions...)
+	if addTime && time != "" {
+		commandLine = append(commandLine, "--time", time)
+	}
+	// Encryption options
+	tmpArg, tmpEnv = c.generateEncryption(option)
+	commandLine = append(commandLine, tmpArg...)
+	env = append(env, tmpEnv...)
+	// Remote repo
+	commandLine = append(commandLine, c.Destination)
+
+	return
+}
+
+func (c *configFile) generateFullCommand(option, time, root, dest string, addTime bool, restoreFile string) (commandLine []string, env []string, err error) {
+	var tmpArg, tmpEnv []string
+	// Assemble command
+	commandLine = append(commandLine, option)
+	// Static Options
+	commandLine = append(commandLine, c.StaticBackupOptions...)
+	if addTime && time != "" {
+		commandLine = append(commandLine, "--time", time)
+	}
+	if restoreFile != "" {
+		commandLine = append(commandLine, "--file-to-restore", restoreFile)
+	}
+	// AWS Storage Class (empty if not used, will get stripped)
+	commandLine = append(commandLine, c.AWS.StorageClass)
+	// Encryption options
+	tmpArg, tmpEnv = c.generateEncryption(option)
+	commandLine = append(commandLine, tmpArg...)
+	env = append(env, tmpEnv...)
+	// Includes / Excludes
+	tmpArg, tmpEnv = c.generateIncludeExclude()
+	commandLine = append(commandLine, tmpArg...)
+	env = append(env, tmpEnv...)
+	// Source / Destination
+	commandLine = append(commandLine, root, dest)
+
+	return
+}
+
+func (c *configFile) generateIncludeExclude() (arguments []string, env []string) {
+	if c.ExcludeDeviceFiles {
+		arguments = append(arguments, "--exclude-device-files")
+	}
+
+	for _, exc := range c.Exclude {
+		arguments = append(arguments, "--exclude="+exc)
+	}
+
+	for _, inc := range c.Include {
+		arguments = append(arguments, "--include="+inc)
+	}
+
+	if c.IncExcFile != "" {
+		arguments = append(arguments, "--include-globbing-filelist", c.IncExcFile)
+	}
+
+	if len(c.Include) > 0 || c.IncExcFile != "" {
+		arguments = append(arguments, "--exclude=**")
+	}
+
+	return
+}
+
+func (c *configFile) generateEncryption(command string) (arguments []string, env []string) {
+	if !c.Encryption.Enable {
+		arguments = append(arguments, "--no-encryption")
+		return
+	}
+
+	if c.Encryption.Passphrase != "" {
+		env = append(env, "PASSPHRASE="+c.Encryption.Passphrase)
+	}
+
+	if c.Encryption.GPGEncryptionKey != "" {
+		if c.Encryption.HideKeyID {
+			arguments = append(arguments, "--hidden-encrypt-key="+c.Encryption.GPGEncryptionKey)
+		} else {
+			arguments = append(arguments, "--encrypt-key="+c.Encryption.GPGEncryptionKey)
+		}
+	}
+
+	if c.Encryption.GPGSignKey != "" && command != "restore" {
+		arguments = append(arguments, "--sign-key="+c.Encryption.GPGSignKey)
+	}
+
+	if c.Encryption.GPGEncryptionKey != "" && c.Encryption.SecretKeyRing != "" {
+		arguments = append(arguments, "--encrypt-secret-keyring="+c.Encryption.SecretKeyRing)
+	}
+
+	return
+}
diff --git a/configfile_test.go b/configfile_test.go
new file mode 100644
index 0000000..c97d013
--- /dev/null
+++ b/configfile_test.go
@@ -0,0 +1,245 @@
+package main
+
+import (
+	"bytes"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Configfile", func() {
+	var config = `---
+root: /
+hostname: testing
+dest: s3+http://my-backup/myhost/
+aws:
+  access_key_id: AKIAJKCC13246798732A
+  secret_access_key: Oosdkfjadgiuagbiajbgaliurtbjsbfgaldfbgdf
+inclist:
+    - /data
+encryption:
+    enable: true
+    passphrase: 5pJZqnzrmFSi1wqZtcUh
+static_options: ["--full-if-older-than", "7D", "--s3-use-new-style"]
+cleanup:
+    type: remove-all-but-n-full
+    value: 2
+logdir: /var/log/duplicity/
+`
+
+	var (
+		commandLine, env, argv []string
+		loadErr, err           error
+		t                      string
+		cf                     *configFile
+	)
+
+	JustBeforeEach(func() {
+		cfg := bytes.NewBuffer([]byte(config))
+		cf, loadErr = loadConfigFile(cfg)
+		if loadErr != nil {
+			panic(loadErr)
+		}
+		commandLine, env, err = cf.GenerateCommand(argv, t)
+	})
+
+	Context("Backup with given config", func() {
+		BeforeEach(func() {
+			argv = []string{"backup"}
+		})
+
+		It("should not have errored", func() {
+			Expect(err).NotTo(HaveOccurred())
+		})
+
+		It("should have exported secrets in ENV variables", func() {
+			Expect(env).To(Equal([]string{
+				"PASSPHRASE=5pJZqnzrmFSi1wqZtcUh",
+				"AWS_ACCESS_KEY_ID=AKIAJKCC13246798732A",
+				"AWS_SECRET_ACCESS_KEY=Oosdkfjadgiuagbiajbgaliurtbjsbfgaldfbgdf",
+			}))
+		})
+
+		It("should have generated the expected commandLine", func() {
+			Expect(commandLine).To(Equal([]string{
+				"--full-if-older-than", "7D",
+				"--s3-use-new-style",
+				"--include=/data",
+				"--exclude=**",
+				"/", "s3+http://my-backup/myhost/",
+			}))
+		})
+	})
+
+	Context("auto-removal with given config", func() {
+		BeforeEach(func() {
+			argv = []string{"__remove_old"}
+		})
+
+		It("should not have errored", func() {
+			Expect(err).NotTo(HaveOccurred())
+		})
+
+		It("should have exported secrets in ENV variables", func() {
+			Expect(env).To(Equal([]string{
+				"PASSPHRASE=5pJZqnzrmFSi1wqZtcUh",
+				"AWS_ACCESS_KEY_ID=AKIAJKCC13246798732A",
+				"AWS_SECRET_ACCESS_KEY=Oosdkfjadgiuagbiajbgaliurtbjsbfgaldfbgdf",
+			}))
+		})
+
+		It("should have generated the expected commandLine", func() {
+			Expect(commandLine).To(Equal([]string{
+				"remove-all-but-n-full", "2",
+				"--full-if-older-than", "7D",
+				"--s3-use-new-style", "--force",
+				"s3+http://my-backup/myhost/",
+			}))
+		})
+	})
+
+	Context("verify with given config", func() {
+		BeforeEach(func() {
+			argv = []string{"verify"}
+		})
+
+		It("should not have errored", func() {
+			Expect(err).NotTo(HaveOccurred())
+		})
+
+		It("should have exported secrets in ENV variables", func() {
+			Expect(env).To(Equal([]string{
+				"PASSPHRASE=5pJZqnzrmFSi1wqZtcUh",
+				"AWS_ACCESS_KEY_ID=AKIAJKCC13246798732A",
+				"AWS_SECRET_ACCESS_KEY=Oosdkfjadgiuagbiajbgaliurtbjsbfgaldfbgdf",
+			}))
+		})
+
+		It("should have generated the expected commandLine", func() {
+			Expect(commandLine).To(Equal([]string{
+				"verify",
+				"--full-if-older-than", "7D",
+				"--s3-use-new-style",
+				"--include=/data",
+				"--exclude=**",
+				"s3+http://my-backup/myhost/", "/",
+			}))
+		})
+	})
+
+	Context("list-current-files with given config", func() {
+		BeforeEach(func() {
+			argv = []string{"list-current-files"}
+		})
+
+		It("should not have errored", func() {
+			Expect(err).NotTo(HaveOccurred())
+		})
+
+		It("should have exported secrets in ENV variables", func() {
+			Expect(env).To(Equal([]string{
+				"PASSPHRASE=5pJZqnzrmFSi1wqZtcUh",
+				"AWS_ACCESS_KEY_ID=AKIAJKCC13246798732A",
+				"AWS_SECRET_ACCESS_KEY=Oosdkfjadgiuagbiajbgaliurtbjsbfgaldfbgdf",
+			}))
+		})
+
+		It("should have generated the expected commandLine", func() {
+			Expect(commandLine).To(Equal([]string{
+				"list-current-files",
+				"--full-if-older-than", "7D",
+				"--s3-use-new-style",
+				"s3+http://my-backup/myhost/",
+			}))
+		})
+	})
+
+	Context("status with given config", func() {
+		BeforeEach(func() {
+			argv = []string{"status"}
+		})
+
+		It("should not have errored", func() {
+			Expect(err).NotTo(HaveOccurred())
+		})
+
+		It("should have exported secrets in ENV variables", func() {
+			Expect(env).To(Equal([]string{
+				"PASSPHRASE=5pJZqnzrmFSi1wqZtcUh",
+				"AWS_ACCESS_KEY_ID=AKIAJKCC13246798732A",
+				"AWS_SECRET_ACCESS_KEY=Oosdkfjadgiuagbiajbgaliurtbjsbfgaldfbgdf",
+			}))
+		})
+
+		It("should have generated the expected commandLine", func() {
+			Expect(commandLine).To(Equal([]string{
+				"collection-status",
+				"--full-if-older-than", "7D",
+				"--s3-use-new-style",
+				"s3+http://my-backup/myhost/",
+			}))
+		})
+	})
+
+	Context("restoring a single file with given config", func() {
+		BeforeEach(func() {
+			argv = []string{"restore", "data/myapp/config.yml", "/home/myuser/config.yml"}
+		})
+
+		It("should not have errored", func() {
+			Expect(err).NotTo(HaveOccurred())
+		})
+
+		It("should have exported secrets in ENV variables", func() {
+			Expect(env).To(Equal([]string{
+				"PASSPHRASE=5pJZqnzrmFSi1wqZtcUh",
+				"AWS_ACCESS_KEY_ID=AKIAJKCC13246798732A",
+				"AWS_SECRET_ACCESS_KEY=Oosdkfjadgiuagbiajbgaliurtbjsbfgaldfbgdf",
+			}))
+		})
+
+		It("should have generated the expected commandLine", func() {
+			Expect(commandLine).To(Equal([]string{
+				"restore",
+				"--full-if-older-than", "7D",
+				"--s3-use-new-style",
+				"--file-to-restore", "data/myapp/config.yml",
+				"--include=/data",
+				"--exclude=**",
+				"s3+http://my-backup/myhost/",
+				"/home/myuser/config.yml",
+			}))
+		})
+	})
+
+	Context("restoring everything with given config", func() {
+		BeforeEach(func() {
+			argv = []string{"restore", "/home/myuser/mybackup/"}
+		})
+
+		It("should not have errored", func() {
+			Expect(err).NotTo(HaveOccurred())
+		})
+
+		It("should have exported secrets in ENV variables", func() {
+			Expect(env).To(Equal([]string{
+				"PASSPHRASE=5pJZqnzrmFSi1wqZtcUh",
+				"AWS_ACCESS_KEY_ID=AKIAJKCC13246798732A",
+				"AWS_SECRET_ACCESS_KEY=Oosdkfjadgiuagbiajbgaliurtbjsbfgaldfbgdf",
+			}))
+		})
+
+		It("should have generated the expected commandLine", func() {
+			Expect(commandLine).To(Equal([]string{
+				"restore",
+				"--full-if-older-than", "7D",
+				"--s3-use-new-style",
+				"--include=/data",
+				"--exclude=**",
+				"s3+http://my-backup/myhost/",
+				"/home/myuser/mybackup/",
+			}))
+		})
+	})
+
+})
diff --git a/duplicity_backup_suite_test.go b/duplicity_backup_suite_test.go
new file mode 100644
index 0000000..d3beaba
--- /dev/null
+++ b/duplicity_backup_suite_test.go
@@ -0,0 +1,13 @@
+package main_test
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	"testing"
+)
+
+func TestDuplicityBackup(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "DuplicityBackup Suite")
+}
diff --git a/help.txt b/help.txt
new file mode 100644
index 0000000..522e262
--- /dev/null
+++ b/help.txt
@@ -0,0 +1,22 @@
+Wrapper around duplicity to create backup with less hazzle
+
+Usage:
+  duplicity-backup [command]
+
+Available Commands:
+  backup                        Create backup according to the backup rules
+  cleanup                       Delete the extraneous duplicity files
+  list-current-files            Lists the files contained in the backup
+  restore [file path] [target]  Restores single file / dir to target directory
+  restore [target]              Restores everything to target directory
+  status                        Summarize the status of the backup repository
+  verify                        Compares backup contents against local files
+
+Flags:
+  --config-file / -f            Configuration for this duplicity wrapper
+                                (Default: ~/.config/duplicity-backup.yaml)
+  --lock-file / -l              File to hold the lock for this wrapper execution
+                                (Default: ~/.config/duplicity-backup.lock)
+  --debug / -d                  Print duplicity commands to output
+  --drt-run / -n                Do a test-run without changes
+  --version                     Prints the current program version and exits
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..a1c6eb2
--- /dev/null
+++ b/main.go
@@ -0,0 +1,168 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"path"
+	"strings"
+	"time"
+
+	"github.com/Luzifer/go_helpers/which"
+	"github.com/Luzifer/rconfig"
+	"github.com/mitchellh/go-homedir"
+	"github.com/nightlyone/lockfile"
+)
+
+var (
+	cfg = struct {
+		ConfigFile string `flag:"config-file,f" default:"~/.config/duplicity-backup.yaml" description:"Configuration for this duplicity wrapper"`
+		LockFile   string `flag:"lock-file,l" default:"~/.config/duplicity-backup.lock" description:"File to hold the lock for this wrapper execution"`
+
+		RestoreTime string `flag:"time,t" description:"The time from which to restore or list files"`
+
+		DryRun         bool `flag:"dry-run,n" default:"false" description:"Do a test-run without changes"`
+		Debug          bool `flag:"debug,d" default:"false" description:"Print duplicity commands to output"`
+		VersionAndExit bool `flag:"version" default:"false" description:"Print version and exit"`
+	}{}
+
+	duplicityBinary string
+	logFile         *os.File
+
+	version = "dev"
+)
+
+func initCFG() {
+	var err error
+	if err = rconfig.Parse(&cfg); err != nil {
+		log.Fatalf("Error while parsing arguments: %s", err)
+	}
+
+	if cfg.VersionAndExit {
+		fmt.Printf("duplicity-backup %s\n", version)
+		os.Exit(0)
+	}
+
+	if cfg.ConfigFile, err = homedir.Expand(cfg.ConfigFile); err != nil {
+		log.Fatalf("Unable to expand config-file: %s", err)
+	}
+
+	if cfg.LockFile, err = homedir.Expand(cfg.LockFile); err != nil {
+		log.Fatalf("Unable to expand lock: %s", err)
+	}
+
+	if duplicityBinary, err = which.FindInPath("duplicity"); err != nil {
+		log.Fatalf("Did not find duplicity binary in $PATH, please install it")
+	}
+}
+
+func logf(pattern string, fields ...interface{}) {
+	t := time.Now().Format("2006-01-02 15:04:05")
+	pattern = fmt.Sprintf("(%s) ", t) + pattern + "\n"
+	fmt.Fprintf(logFile, pattern, fields...)
+	fmt.Printf(pattern, fields...)
+}
+
+func main() {
+	initCFG()
+
+	var (
+		err    error
+		config *configFile
+	)
+
+	lock, err := lockfile.New(cfg.LockFile)
+	if err != nil {
+		log.Fatalf("Could not initialize lockfile: %s", err)
+	}
+
+	// If no command is passed assume we're requesting "help"
+	argv := rconfig.Args()
+	if len(argv) == 1 || argv[1] == "help" {
+		helptext, _ := Asset("help.txt")
+		fmt.Println(string(helptext))
+		return
+	}
+
+	// Get configuration
+	configSource, err := os.Open(cfg.ConfigFile)
+	if err != nil {
+		log.Fatalf("Unable to open configuration file %s: %s", cfg.ConfigFile, err)
+	}
+	defer configSource.Close()
+	config, err = loadConfigFile(configSource)
+	if err != nil {
+		log.Fatalf("Unable to read configuration file: %s", err)
+	}
+
+	// Initialize logfile
+	os.MkdirAll(config.LogDirectory, 0755)
+	logFilePath := path.Join(config.LogDirectory, time.Now().Format("duplicity-backup_2006-01-02_15-04-05.txt"))
+	if logFile, err = os.Create(logFilePath); err != nil {
+		log.Fatalf("Unable to open logfile %s: %s", logFilePath, err)
+	}
+	defer logFile.Close()
+
+	logf("\n++++ duplicity-backup %s started with command '%s'", version, argv[1])
+
+	if err := lock.TryLock(); err != nil {
+		logf("Could not aquire lock: %s", err)
+		return
+	}
+	defer lock.Unlock()
+
+	if err := execute(config, argv[1:]); err != nil {
+		return
+	}
+
+	if config.Cleanup.Type != "none" {
+		logf("++++ Starting removal of old backups")
+
+		if err := execute(config, []string{"__remove_old"}); err != nil {
+			return
+		}
+	}
+
+	logf("++++ Backup finished successfully")
+}
+
+func execute(config *configFile, argv []string) error {
+	var (
+		err              error
+		commandLine, env []string
+	)
+	commandLine, env, err = config.GenerateCommand(argv, cfg.RestoreTime)
+	if err != nil {
+		logf("[ERR] %s", err)
+		return err
+	}
+
+	// Ensure duplicity is talking to us
+	commandLine = append([]string{"-v3"}, commandLine...)
+
+	if cfg.DryRun {
+		commandLine = append([]string{"--dry-run"}, commandLine...)
+	}
+
+	if cfg.Debug {
+		logf("[DBG] Command: %s %s", duplicityBinary, strings.Join(commandLine, " "))
+	}
+
+	output := bytes.NewBuffer([]byte{})
+	cmd := exec.Command(duplicityBinary, commandLine...)
+	cmd.Stdout = output
+	cmd.Stderr = output
+	cmd.Env = env
+	err = cmd.Run()
+
+	logf("%s", output.String())
+	if err != nil {
+		logf("[ERR] Execution of duplicity command was unsuccessful! (exit-code was non-zero)")
+	} else {
+		logf("[INF] Execution of duplicity command was successful.")
+	}
+
+	return err
+}
diff --git a/vendor/github.com/Luzifer/go_helpers/which/which.go b/vendor/github.com/Luzifer/go_helpers/which/which.go
new file mode 100644
index 0000000..4190ea4
--- /dev/null
+++ b/vendor/github.com/Luzifer/go_helpers/which/which.go
@@ -0,0 +1,54 @@
+package which
+
+import (
+	"errors"
+	"os"
+	"path"
+	"strings"
+)
+
+// Common named errors to match in programs using this library
+var (
+	ErrBinaryNotFound    = errors.New("Requested binary was not found")
+	ErrNoSearchSpecified = errors.New("You need to specify a binary to search")
+)
+
+// FindInPath searches the specified binary in directories listed in $PATH and returns first match
+func FindInPath(binary string) (string, error) {
+	pathEnv := os.Getenv("PATH")
+	if len(pathEnv) == 0 {
+		return "", errors.New("Found empty $PATH, not able to search $PATH")
+	}
+
+	for _, part := range strings.Split(pathEnv, ":") {
+		if len(part) == 0 {
+			continue
+		}
+
+		if found, err := FindInDirectory(binary, part); err != nil {
+			return "", err
+		} else if found {
+			return path.Join(part, binary), nil
+		}
+	}
+
+	return "", ErrBinaryNotFound
+}
+
+// FindInDirectory checks whether the specified file is present in the directory
+func FindInDirectory(binary, directory string) (bool, error) {
+	if len(binary) == 0 {
+		return false, ErrNoSearchSpecified
+	}
+
+	_, err := os.Stat(path.Join(directory, binary))
+
+	switch {
+	case err == nil:
+		return true, nil
+	case os.IsNotExist(err):
+		return false, nil
+	default:
+		return false, err
+	}
+}
diff --git a/vendor/github.com/Luzifer/rconfig/.travis.yml b/vendor/github.com/Luzifer/rconfig/.travis.yml
new file mode 100644
index 0000000..520bedf
--- /dev/null
+++ b/vendor/github.com/Luzifer/rconfig/.travis.yml
@@ -0,0 +1,8 @@
+language: go
+
+go:
+  - 1.4
+  - 1.5
+  - tip
+
+script: go test -v -race -cover ./...
diff --git a/vendor/github.com/Luzifer/rconfig/LICENSE b/vendor/github.com/Luzifer/rconfig/LICENSE
new file mode 100644
index 0000000..4fde5d2
--- /dev/null
+++ b/vendor/github.com/Luzifer/rconfig/LICENSE
@@ -0,0 +1,13 @@
+Copyright 2015 Knut Ahlers <knut@ahlers.me>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/vendor/github.com/Luzifer/rconfig/README.md b/vendor/github.com/Luzifer/rconfig/README.md
new file mode 100644
index 0000000..67fbf87
--- /dev/null
+++ b/vendor/github.com/Luzifer/rconfig/README.md
@@ -0,0 +1,94 @@
+[![Build Status](https://travis-ci.org/Luzifer/rconfig.svg?branch=master)](https://travis-ci.org/Luzifer/rconfig)
+[![License: Apache v2.0](https://badge.luzifer.io/v1/badge?color=5d79b5&title=license&text=Apache+v2.0)](http://www.apache.org/licenses/LICENSE-2.0)
+[![Documentation](https://badge.luzifer.io/v1/badge?title=godoc&text=reference)](https://godoc.org/github.com/Luzifer/rconfig)
+[![Go Report](http://goreportcard.com/badge/Luzifer/rconfig)](http://goreportcard.com/report/Luzifer/rconfig)
+
+## Description
+
+> Package rconfig implements a CLI configuration reader with struct-embedded defaults, environment variables and posix compatible flag parsing using the [pflag](https://github.com/spf13/pflag) library.
+
+## Installation
+
+Install by running:
+
+```
+go get -u github.com/Luzifer/rconfig
+```
+
+OR fetch a specific version:
+
+```
+go get -u gopkg.in/luzifer/rconfig.v1
+```
+
+Run tests by running:
+
+```
+go test -v -race -cover github.com/Luzifer/rconfig
+```
+
+## Usage
+
+As a first step define a struct holding your configuration:
+
+```go
+type config struct {
+  Username string `default:"unknown" flag:"user" description:"Your name"`
+  Details  struct {
+    Age int `default:"25" flag:"age" env:"age" description:"Your age"`
+  }
+}
+```
+
+Next create an instance of that struct and let `rconfig` fill that config:
+
+```go
+var cfg config
+func init() {
+  cfg = config{}
+  rconfig.Parse(&cfg)
+}
+```
+
+You're ready to access your configuration:
+
+```go
+func main() {
+  fmt.Printf("Hello %s, happy birthday for your %dth birthday.",
+		cfg.Username,
+		cfg.Details.Age)
+}
+```
+
+### Provide variable defaults by using a file
+
+Given you have a file `~/.myapp.yml` containing some secrets or usernames (for the example below username is assumed to be "luzifer") as a default configuration for your application you can use this source code to load the defaults from that file using the `vardefault` tag in your configuration struct.
+
+The order of the directives (lower number = higher precedence):
+
+1. Flags provided in command line
+1. Environment variables
+1. Variable defaults (`vardefault` tag in the struct)
+1. `default` tag in the struct
+
+```go
+type config struct {
+  Username string `vardefault:"username" flag:"username" description:"Your username"`
+}
+
+var cfg = config{}
+
+func init() {
+  rconfig.SetVariableDefaults(rconfig.VarDefaultsFromYAMLFile("~/.myapp.yml"))
+  rconfig.Parse(&cfg)
+}
+
+func main() {
+  fmt.Printf("Username = %s", cfg.Username)
+  // Output: Username = luzifer
+}
+```
+
+## More info
+
+You can see the full reference documentation of the rconfig package [at godoc.org](https://godoc.org/github.com/Luzifer/rconfig), or through go's standard documentation system by running `godoc -http=:6060` and browsing to [http://localhost:6060/pkg/github.com/Luzifer/rconfig](http://localhost:6060/pkg/github.com/Luzifer/rconfig) after installation.
diff --git a/vendor/github.com/Luzifer/rconfig/config.go b/vendor/github.com/Luzifer/rconfig/config.go
new file mode 100644
index 0000000..454626d
--- /dev/null
+++ b/vendor/github.com/Luzifer/rconfig/config.go
@@ -0,0 +1,314 @@
+// Package rconfig implements a CLI configuration reader with struct-embedded
+// defaults, environment variables and posix compatible flag parsing using
+// the pflag library.
+package rconfig
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"reflect"
+	"strconv"
+	"strings"
+
+	"github.com/spf13/pflag"
+)
+
+var (
+	fs               *pflag.FlagSet
+	variableDefaults map[string]string
+)
+
+func init() {
+	variableDefaults = make(map[string]string)
+}
+
+// Parse takes the pointer to a struct filled with variables which should be read
+// from ENV, default or flag. The precedence in this is flag > ENV > default. So
+// if a flag is specified on the CLI it will overwrite the ENV and otherwise ENV
+// overwrites the default specified.
+//
+// For your configuration struct you can use the following struct-tags to control
+// the behavior of rconfig:
+//
+//     default: Set a default value
+//     vardefault: Read the default value from the variable defaults
+//     env: Read the value from this environment variable
+//     flag: Flag to read in format "long,short" (for example "listen,l")
+//     description: A help text for Usage output to guide your users
+//
+// The format you need to specify those values you can see in the example to this
+// function.
+//
+func Parse(config interface{}) error {
+	return parse(config, nil)
+}
+
+// Args returns the non-flag command-line arguments.
+func Args() []string {
+	return fs.Args()
+}
+
+// Usage prints a basic usage with the corresponding defaults for the flags to
+// os.Stdout. The defaults are derived from the `default` struct-tag and the ENV.
+func Usage() {
+	if fs != nil && fs.Parsed() {
+		fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
+		fs.PrintDefaults()
+	}
+}
+
+// SetVariableDefaults presets the parser with a map of default values to be used
+// when specifying the vardefault tag
+func SetVariableDefaults(defaults map[string]string) {
+	variableDefaults = defaults
+}
+
+func parse(in interface{}, args []string) error {
+	if args == nil {
+		args = os.Args
+	}
+
+	fs = pflag.NewFlagSet(os.Args[0], pflag.ExitOnError)
+	if err := execTags(in, fs); err != nil {
+		return err
+	}
+
+	return fs.Parse(args)
+}
+
+func execTags(in interface{}, fs *pflag.FlagSet) error {
+	if reflect.TypeOf(in).Kind() != reflect.Ptr {
+		return errors.New("Calling parser with non-pointer")
+	}
+
+	if reflect.ValueOf(in).Elem().Kind() != reflect.Struct {
+		return errors.New("Calling parser with pointer to non-struct")
+	}
+
+	st := reflect.ValueOf(in).Elem()
+	for i := 0; i < st.NumField(); i++ {
+		valField := st.Field(i)
+		typeField := st.Type().Field(i)
+
+		if typeField.Tag.Get("default") == "" && typeField.Tag.Get("env") == "" && typeField.Tag.Get("flag") == "" && typeField.Type.Kind() != reflect.Struct {
+			// None of our supported tags is present and it's not a sub-struct
+			continue
+		}
+
+		value := varDefault(typeField.Tag.Get("vardefault"), typeField.Tag.Get("default"))
+		value = envDefault(typeField.Tag.Get("env"), value)
+		parts := strings.Split(typeField.Tag.Get("flag"), ",")
+
+		switch typeField.Type.Kind() {
+		case reflect.String:
+			if typeField.Tag.Get("flag") != "" {
+				if len(parts) == 1 {
+					fs.StringVar(valField.Addr().Interface().(*string), parts[0], value, typeField.Tag.Get("description"))
+				} else {
+					fs.StringVarP(valField.Addr().Interface().(*string), parts[0], parts[1], value, typeField.Tag.Get("description"))
+				}
+			} else {
+				valField.SetString(value)
+			}
+
+		case reflect.Bool:
+			v := value == "true"
+			if typeField.Tag.Get("flag") != "" {
+				if len(parts) == 1 {
+					fs.BoolVar(valField.Addr().Interface().(*bool), parts[0], v, typeField.Tag.Get("description"))
+				} else {
+					fs.BoolVarP(valField.Addr().Interface().(*bool), parts[0], parts[1], v, typeField.Tag.Get("description"))
+				}
+			} else {
+				valField.SetBool(v)
+			}
+
+		case reflect.Int, reflect.Int8, reflect.Int32, reflect.Int64:
+			vt, err := strconv.ParseInt(value, 10, 64)
+			if err != nil {
+				if value == "" {
+					vt = 0
+				} else {
+					return err
+				}
+			}
+			if typeField.Tag.Get("flag") != "" {
+				registerFlagInt(typeField.Type.Kind(), fs, valField.Addr().Interface(), parts, vt, typeField.Tag.Get("description"))
+			} else {
+				valField.SetInt(vt)
+			}
+
+		case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+			vt, err := strconv.ParseUint(value, 10, 64)
+			if err != nil {
+				if value == "" {
+					vt = 0
+				} else {
+					return err
+				}
+			}
+			if typeField.Tag.Get("flag") != "" {
+				registerFlagUint(typeField.Type.Kind(), fs, valField.Addr().Interface(), parts, vt, typeField.Tag.Get("description"))
+			} else {
+				valField.SetUint(vt)
+			}
+
+		case reflect.Float32, reflect.Float64:
+			vt, err := strconv.ParseFloat(value, 64)
+			if err != nil {
+				if value == "" {
+					vt = 0.0
+				} else {
+					return err
+				}
+			}
+			if typeField.Tag.Get("flag") != "" {
+				registerFlagFloat(typeField.Type.Kind(), fs, valField.Addr().Interface(), parts, vt, typeField.Tag.Get("description"))
+			} else {
+				valField.SetFloat(vt)
+			}
+
+		case reflect.Struct:
+			if err := execTags(valField.Addr().Interface(), fs); err != nil {
+				return err
+			}
+
+		case reflect.Slice:
+			switch typeField.Type.Elem().Kind() {
+			case reflect.Int:
+				def := []int{}
+				for _, v := range strings.Split(value, ",") {
+					it, err := strconv.ParseInt(strings.TrimSpace(v), 10, 64)
+					if err != nil {
+						return err
+					}
+					def = append(def, int(it))
+				}
+				if len(parts) == 1 {
+					fs.IntSliceVar(valField.Addr().Interface().(*[]int), parts[0], def, typeField.Tag.Get("description"))
+				} else {
+					fs.IntSliceVarP(valField.Addr().Interface().(*[]int), parts[0], parts[1], def, typeField.Tag.Get("description"))
+				}
+			case reflect.String:
+				del := typeField.Tag.Get("delimiter")
+				if len(del) == 0 {
+					del = ","
+				}
+				def := strings.Split(value, del)
+				if len(parts) == 1 {
+					fs.StringSliceVar(valField.Addr().Interface().(*[]string), parts[0], def, typeField.Tag.Get("description"))
+				} else {
+					fs.StringSliceVarP(valField.Addr().Interface().(*[]string), parts[0], parts[1], def, typeField.Tag.Get("description"))
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+func registerFlagFloat(t reflect.Kind, fs *pflag.FlagSet, field interface{}, parts []string, vt float64, desc string) {
+	switch t {
+	case reflect.Float32:
+		if len(parts) == 1 {
+			fs.Float32Var(field.(*float32), parts[0], float32(vt), desc)
+		} else {
+			fs.Float32VarP(field.(*float32), parts[0], parts[1], float32(vt), desc)
+		}
+	case reflect.Float64:
+		if len(parts) == 1 {
+			fs.Float64Var(field.(*float64), parts[0], float64(vt), desc)
+		} else {
+			fs.Float64VarP(field.(*float64), parts[0], parts[1], float64(vt), desc)
+		}
+	}
+}
+
+func registerFlagInt(t reflect.Kind, fs *pflag.FlagSet, field interface{}, parts []string, vt int64, desc string) {
+	switch t {
+	case reflect.Int:
+		if len(parts) == 1 {
+			fs.IntVar(field.(*int), parts[0], int(vt), desc)
+		} else {
+			fs.IntVarP(field.(*int), parts[0], parts[1], int(vt), desc)
+		}
+	case reflect.Int8:
+		if len(parts) == 1 {
+			fs.Int8Var(field.(*int8), parts[0], int8(vt), desc)
+		} else {
+			fs.Int8VarP(field.(*int8), parts[0], parts[1], int8(vt), desc)
+		}
+	case reflect.Int32:
+		if len(parts) == 1 {
+			fs.Int32Var(field.(*int32), parts[0], int32(vt), desc)
+		} else {
+			fs.Int32VarP(field.(*int32), parts[0], parts[1], int32(vt), desc)
+		}
+	case reflect.Int64:
+		if len(parts) == 1 {
+			fs.Int64Var(field.(*int64), parts[0], int64(vt), desc)
+		} else {
+			fs.Int64VarP(field.(*int64), parts[0], parts[1], int64(vt), desc)
+		}
+	}
+}
+
+func registerFlagUint(t reflect.Kind, fs *pflag.FlagSet, field interface{}, parts []string, vt uint64, desc string) {
+	switch t {
+	case reflect.Uint:
+		if len(parts) == 1 {
+			fs.UintVar(field.(*uint), parts[0], uint(vt), desc)
+		} else {
+			fs.UintVarP(field.(*uint), parts[0], parts[1], uint(vt), desc)
+		}
+	case reflect.Uint8:
+		if len(parts) == 1 {
+			fs.Uint8Var(field.(*uint8), parts[0], uint8(vt), desc)
+		} else {
+			fs.Uint8VarP(field.(*uint8), parts[0], parts[1], uint8(vt), desc)
+		}
+	case reflect.Uint16:
+		if len(parts) == 1 {
+			fs.Uint16Var(field.(*uint16), parts[0], uint16(vt), desc)
+		} else {
+			fs.Uint16VarP(field.(*uint16), parts[0], parts[1], uint16(vt), desc)
+		}
+	case reflect.Uint32:
+		if len(parts) == 1 {
+			fs.Uint32Var(field.(*uint32), parts[0], uint32(vt), desc)
+		} else {
+			fs.Uint32VarP(field.(*uint32), parts[0], parts[1], uint32(vt), desc)
+		}
+	case reflect.Uint64:
+		if len(parts) == 1 {
+			fs.Uint64Var(field.(*uint64), parts[0], uint64(vt), desc)
+		} else {
+			fs.Uint64VarP(field.(*uint64), parts[0], parts[1], uint64(vt), desc)
+		}
+	}
+}
+
+func envDefault(env, def string) string {
+	value := def
+
+	if env != "" {
+		if e := os.Getenv(env); e != "" {
+			value = e
+		}
+	}
+
+	return value
+}
+
+func varDefault(name, def string) string {
+	value := def
+
+	if name != "" {
+		if v, ok := variableDefaults[name]; ok {
+			value = v
+		}
+	}
+
+	return value
+}
diff --git a/vendor/github.com/Luzifer/rconfig/vardefault_providers.go b/vendor/github.com/Luzifer/rconfig/vardefault_providers.go
new file mode 100644
index 0000000..2199cfa
--- /dev/null
+++ b/vendor/github.com/Luzifer/rconfig/vardefault_providers.go
@@ -0,0 +1,27 @@
+package rconfig
+
+import (
+	"io/ioutil"
+
+	"gopkg.in/yaml.v2"
+)
+
+// VarDefaultsFromYAMLFile reads contents of a file and calls VarDefaultsFromYAML
+func VarDefaultsFromYAMLFile(filename string) map[string]string {
+	data, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return make(map[string]string)
+	}
+
+	return VarDefaultsFromYAML(data)
+}
+
+// VarDefaultsFromYAML creates a vardefaults map from YAML raw data
+func VarDefaultsFromYAML(in []byte) map[string]string {
+	out := make(map[string]string)
+	err := yaml.Unmarshal(in, &out)
+	if err != nil {
+		return make(map[string]string)
+	}
+	return out
+}
diff --git a/vendor/github.com/asaskevich/govalidator/.travis.yml b/vendor/github.com/asaskevich/govalidator/.travis.yml
new file mode 100644
index 0000000..e29f8ee
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/.travis.yml
@@ -0,0 +1,14 @@
+language: go
+
+go:
+  - 1.1
+  - 1.2
+  - 1.3
+  - 1.4
+  - 1.5
+  - 1.6
+  - tip
+
+notifications:
+  email:
+    - bwatas@gmail.com
diff --git a/vendor/github.com/asaskevich/govalidator/LICENSE b/vendor/github.com/asaskevich/govalidator/LICENSE
new file mode 100644
index 0000000..2f9a31f
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Alex Saskevich
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/vendor/github.com/asaskevich/govalidator/README.md b/vendor/github.com/asaskevich/govalidator/README.md
new file mode 100644
index 0000000..68af10c
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/README.md
@@ -0,0 +1,398 @@
+govalidator
+===========
+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/asaskevich/govalidator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [![GoDoc](https://godoc.org/github.com/asaskevich/govalidator?status.png)](https://godoc.org/github.com/asaskevich/govalidator) [![Coverage Status](https://img.shields.io/coveralls/asaskevich/govalidator.svg)](https://coveralls.io/r/asaskevich/govalidator?branch=master) [![wercker status](https://app.wercker.com/status/1ec990b09ea86c910d5f08b0e02c6043/s "wercker status")](https://app.wercker.com/project/bykey/1ec990b09ea86c910d5f08b0e02c6043)
+[![Build Status](https://travis-ci.org/asaskevich/govalidator.svg?branch=master)](https://travis-ci.org/asaskevich/govalidator)
+
+A package of validators and sanitizers for strings, structs and collections. Based on [validator.js](https://github.com/chriso/validator.js).
+
+#### Installation
+Make sure that Go is installed on your computer.
+Type the following command in your terminal:
+
+	go get github.com/asaskevich/govalidator
+
+or you can get specified release of the package with `gopkg.in`:
+
+	go get gopkg.in/asaskevich/govalidator.v4
+
+After it the package is ready to use.
+
+
+#### Import package in your project
+Add following line in your `*.go` file:
+```go
+import "github.com/asaskevich/govalidator"
+```
+If you are unhappy to use long `govalidator`, you can do something like this:
+```go
+import (
+  valid "github.com/asaskevich/govalidator"
+)
+```
+
+#### Activate behavior to require all fields have a validation tag by default
+`SetFieldsRequiredByDefault` causes validation to fail when struct fields do not include validations or are not explicitly marked as exempt (using `valid:"-"` or `valid:"email,optional"`). A good place to activate this is a package init function or the main() function.
+
+```go
+import "github.com/asaskevich/govalidator"
+
+func init() {
+  govalidator.SetFieldsRequiredByDefault(true)
+}
+```
+
+Here's some code to explain it:
+```go
+// this struct definition will fail govalidator.ValidateStruct() (and the field values do not matter):
+type exampleStruct struct {
+  Name  string ``
+  Email string `valid:"email"`
+
+// this, however, will only fail when Email is empty or an invalid email address:
+type exampleStruct2 struct {
+  Name  string `valid:"-"`
+  Email string `valid:"email"`
+
+// lastly, this will only fail when Email is an invalid email address but not when it's empty:
+type exampleStruct2 struct {
+  Name  string `valid:"-"`
+  Email string `valid:"email,optional"`
+```
+
+#### Recent breaking changes (see [#123](https://github.com/asaskevich/govalidator/pull/123))
+##### Custom validator function signature
+A context was added as the second parameter, for structs this is the object being validated – this makes dependent validation possible.
+```go
+import "github.com/asaskevich/govalidator"
+
+// old signature
+func(i interface{}) bool
+
+// new signature
+func(i interface{}, o interface{}) bool
+```
+
+##### Adding a custom validator
+This was changed to prevent data races when accessing custom validators.
+```go
+import "github.com/asaskevich/govalidator"
+
+// before
+govalidator.CustomTypeTagMap["customByteArrayValidator"] = CustomTypeValidator(func(i interface{}, o interface{}) bool {
+  // ...
+})
+
+// after
+govalidator.CustomTypeTagMap.Set("customByteArrayValidator", CustomTypeValidator(func(i interface{}, o interface{}) bool {
+  // ...
+}))
+```
+
+#### List of functions:
+```go
+func Abs(value float64) float64
+func BlackList(str, chars string) string
+func ByteLength(str string, params ...string) bool
+func StringLength(str string, params ...string) bool
+func StringMatches(s string, params ...string) bool
+func CamelCaseToUnderscore(str string) string
+func Contains(str, substring string) bool
+func Count(array []interface{}, iterator ConditionIterator) int
+func Each(array []interface{}, iterator Iterator)
+func ErrorByField(e error, field string) string
+func Filter(array []interface{}, iterator ConditionIterator) []interface{}
+func Find(array []interface{}, iterator ConditionIterator) interface{}
+func GetLine(s string, index int) (string, error)
+func GetLines(s string) []string
+func IsHost(s string) bool
+func InRange(value, left, right float64) bool
+func IsASCII(str string) bool
+func IsAlpha(str string) bool
+func IsAlphanumeric(str string) bool
+func IsBase64(str string) bool
+func IsByteLength(str string, min, max int) bool
+func IsCreditCard(str string) bool
+func IsDataURI(str string) bool
+func IsDialString(str string) bool
+func IsDNSName(str string) bool
+func IsDivisibleBy(str, num string) bool
+func IsEmail(str string) bool
+func IsFilePath(str string) (bool, int)
+func IsFloat(str string) bool
+func IsFullWidth(str string) bool
+func IsHalfWidth(str string) bool
+func IsHexadecimal(str string) bool
+func IsHexcolor(str string) bool
+func IsIP(str string) bool
+func IsIPv4(str string) bool
+func IsIPv6(str string) bool
+func IsISBN(str string, version int) bool
+func IsISBN10(str string) bool
+func IsISBN13(str string) bool
+func IsISO3166Alpha2(str string) bool
+func IsISO3166Alpha3(str string) bool
+func IsInt(str string) bool
+func IsJSON(str string) bool
+func IsLatitude(str string) bool
+func IsLongitude(str string) bool
+func IsLowerCase(str string) bool
+func IsMAC(str string) bool
+func IsMongoID(str string) bool
+func IsMultibyte(str string) bool
+func IsNatural(value float64) bool
+func IsNegative(value float64) bool
+func IsNonNegative(value float64) bool
+func IsNonPositive(value float64) bool
+func IsNull(str string) bool
+func IsNumeric(str string) bool
+func IsPort(str string) bool
+func IsPositive(value float64) bool
+func IsPrintableASCII(str string) bool
+func IsRGBcolor(str string) bool
+func IsRequestURI(rawurl string) bool
+func IsRequestURL(rawurl string) bool
+func IsSSN(str string) bool
+func IsSemver(str string) bool
+func IsURL(str string) bool
+func IsUTFDigit(str string) bool
+func IsUTFLetter(str string) bool
+func IsUTFLetterNumeric(str string) bool
+func IsUTFNumeric(str string) bool
+func IsUUID(str string) bool
+func IsUUIDv3(str string) bool
+func IsUUIDv4(str string) bool
+func IsUUIDv5(str string) bool
+func IsUpperCase(str string) bool
+func IsVariableWidth(str string) bool
+func IsWhole(value float64) bool
+func LeftTrim(str, chars string) string
+func Map(array []interface{}, iterator ResultIterator) []interface{}
+func Matches(str, pattern string) bool
+func NormalizeEmail(str string) (string, error)
+func RemoveTags(s string) string
+func ReplacePattern(str, pattern, replace string) string
+func Reverse(s string) string
+func RightTrim(str, chars string) string
+func SafeFileName(str string) string
+func Sign(value float64) float64
+func StripLow(str string, keepNewLines bool) string
+func ToBoolean(str string) (bool, error)
+func ToFloat(str string) (float64, error)
+func ToInt(str string) (int64, error)
+func ToJSON(obj interface{}) (string, error)
+func ToString(obj interface{}) string
+func Trim(str, chars string) string
+func Truncate(str string, length int, ending string) string
+func UnderscoreToCamelCase(s string) string
+func ValidateStruct(s interface{}) (bool, error)
+func WhiteList(str, chars string) string
+type ConditionIterator
+type Error
+func (e Error) Error() string
+type Errors
+func (es Errors) Error() string
+type ISO3166Entry
+type Iterator
+type ParamValidator
+type ResultIterator
+type UnsupportedTypeError
+func (e *UnsupportedTypeError) Error() string
+type Validator
+```
+
+#### Examples
+###### IsURL
+```go
+println(govalidator.IsURL(`http://user@pass:domain.com/path/page`))
+```
+###### ToString
+```go
+type User struct {
+	FirstName string
+	LastName string
+}
+
+str := govalidator.ToString(&User{"John", "Juan"})
+println(str)
+```
+###### Each, Map, Filter, Count for slices
+Each iterates over the slice/array and calls Iterator for every item
+```go
+data := []interface{}{1, 2, 3, 4, 5}
+var fn govalidator.Iterator = func(value interface{}, index int) {
+	println(value.(int))
+}
+govalidator.Each(data, fn)
+```
+```go
+data := []interface{}{1, 2, 3, 4, 5}
+var fn govalidator.ResultIterator = func(value interface{}, index int) interface{} {
+	return value.(int) * 3
+}
+_ = govalidator.Map(data, fn) // result = []interface{}{1, 6, 9, 12, 15}
+```
+```go
+data := []interface{}{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
+var fn govalidator.ConditionIterator = func(value interface{}, index int) bool {
+	return value.(int)%2 == 0
+}
+_ = govalidator.Filter(data, fn) // result = []interface{}{2, 4, 6, 8, 10}
+_ = govalidator.Count(data, fn) // result = 5
+```
+###### ValidateStruct [#2](https://github.com/asaskevich/govalidator/pull/2)
+If you want to validate structs, you can use tag `valid` for any field in your structure. All validators used with this field in one tag are separated by comma. If you want to skip validation, place `-` in your tag. If you need a validator that is not on the list below, you can add it like this:
+```go
+govalidator.TagMap["duck"] = govalidator.Validator(func(str string) bool {
+	return str == "duck"
+})
+```
+For completely custom validators (interface-based), see below.
+
+Here is a list of available validators for struct fields (validator - used function):
+```go
+"alpha":          IsAlpha,
+"alphanum":       IsAlphanumeric,
+"ascii":          IsASCII,
+"base64":         IsBase64,
+"creditcard":     IsCreditCard,
+"datauri":        IsDataURI,
+"dialstring":     IsDialString,
+"dns":            IsDNSName,
+"email":          IsEmail,
+"float":          IsFloat,
+"fullwidth":      IsFullWidth,
+"halfwidth":      IsHalfWidth,
+"hexadecimal":    IsHexadecimal,
+"hexcolor":       IsHexcolor,
+"host":           IsHost,
+"int":            IsInt,
+"ip":             IsIP,
+"ipv4":           IsIPv4,
+"ipv6":           IsIPv6,
+"isbn10":         IsISBN10,
+"isbn13":         IsISBN13,
+"json":           IsJSON,
+"latitude":       IsLatitude,
+"longitude":      IsLongitude,
+"lowercase":      IsLowerCase,
+"mac":            IsMAC,
+"multibyte":      IsMultibyte,
+"null":           IsNull,
+"numeric":        IsNumeric,
+"port":           IsPort,
+"printableascii": IsPrintableASCII,
+"requri":         IsRequestURI,
+"requrl":         IsRequestURL,
+"rgbcolor":       IsRGBcolor,
+"ssn":            IsSSN,
+"semver":         IsSemver,
+"uppercase":      IsUpperCase,
+"url":            IsURL,
+"utfdigit":       IsUTFDigit,
+"utfletter":      IsUTFLetter,
+"utfletternum":   IsUTFLetterNumeric,
+"utfnumeric":     IsUTFNumeric,
+"uuid":           IsUUID,
+"uuidv3":         IsUUIDv3,
+"uuidv4":         IsUUIDv4,
+"uuidv5":         IsUUIDv5,
+"variablewidth":  IsVariableWidth,
+```
+Validators with parameters
+
+```go
+"length(min|max)": ByteLength,
+"matches(pattern)": StringMatches,
+```
+
+And here is small example of usage:
+```go
+type Post struct {
+	Title    string `valid:"alphanum,required"`
+	Message  string `valid:"duck,ascii"`
+	AuthorIP string `valid:"ipv4"`
+	Date     string `valid:"-"`
+}
+post := &Post{
+	Title:   "My Example Post",
+	Message: "duck",
+	AuthorIP: "123.234.54.3",
+}
+
+// Add your own struct validation tags
+govalidator.TagMap["duck"] = govalidator.Validator(func(str string) bool {
+	return str == "duck"
+})
+
+result, err := govalidator.ValidateStruct(post)
+if err != nil {
+	println("error: " + err.Error())
+}
+println(result)
+```
+###### WhiteList
+```go
+// Remove all characters from string ignoring characters between "a" and "z"
+println(govalidator.WhiteList("a3a43a5a4a3a2a23a4a5a4a3a4", "a-z") == "aaaaaaaaaaaa")
+```
+
+###### Custom validation functions
+Custom validation using your own domain specific validators is also available - here's an example of how to use it:
+```go
+import "github.com/asaskevich/govalidator"
+
+type CustomByteArray [6]byte // custom types are supported and can be validated
+
+type StructWithCustomByteArray struct {
+  ID              CustomByteArray `valid:"customByteArrayValidator,customMinLengthValidator"` // multiple custom validators are possible as well and will be evaluated in sequence
+  Email           string          `valid:"email"`
+  CustomMinLength int             `valid:"-"`
+}
+
+govalidator.CustomTypeTagMap.Set("customByteArrayValidator", CustomTypeValidator(func(i interface{}, context interface{}) bool {
+  switch v := context.(type) { // you can type switch on the context interface being validated
+  case StructWithCustomByteArray:
+    // you can check and validate against some other field in the context,
+    // return early or not validate against the context at all – your choice
+  case SomeOtherType:
+    // ...
+  default:
+    // expecting some other type? Throw/panic here or continue
+  }
+
+  switch v := i.(type) { // type switch on the struct field being validated
+  case CustomByteArray:
+    for _, e := range v { // this validator checks that the byte array is not empty, i.e. not all zeroes
+      if e != 0 {
+        return true
+      }
+    }
+  }
+  return false
+}))
+govalidator.CustomTypeTagMap.Set("customMinLengthValidator", CustomTypeValidator(func(i interface{}, context interface{}) bool {
+  switch v := context.(type) { // this validates a field against the value in another field, i.e. dependent validation
+  case StructWithCustomByteArray:
+    return len(v.ID) >= v.CustomMinLength
+  }
+  return false
+}))
+```
+
+#### Notes
+Documentation is available here: [godoc.org](https://godoc.org/github.com/asaskevich/govalidator).
+Full information about code coverage is also available here: [govalidator on gocover.io](http://gocover.io/github.com/asaskevich/govalidator).
+
+#### Support
+If you do have a contribution for the package feel free to put up a Pull Request or open Issue.
+
+#### Special thanks to [contributors](https://github.com/asaskevich/govalidator/graphs/contributors)
+* [Daniel Lohse](https://github.com/annismckenzie)
+* [Attila Oláh](https://github.com/attilaolah)
+* [Daniel Korner](https://github.com/Dadie)
+* [Steven Wilkin](https://github.com/stevenwilkin)
+* [Deiwin Sarjas](https://github.com/deiwin)
+* [Noah Shibley](https://github.com/slugmobile)
+* [Nathan Davies](https://github.com/nathj07)
+* [Matt Sanford](https://github.com/mzsanford)
+* [Simon ccl1115](https://github.com/ccl1115)
diff --git a/vendor/github.com/asaskevich/govalidator/arrays.go b/vendor/github.com/asaskevich/govalidator/arrays.go
new file mode 100644
index 0000000..5bace26
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/arrays.go
@@ -0,0 +1,58 @@
+package govalidator
+
+// Iterator is the function that accepts element of slice/array and its index
+type Iterator func(interface{}, int)
+
+// ResultIterator is the function that accepts element of slice/array and its index and returns any result
+type ResultIterator func(interface{}, int) interface{}
+
+// ConditionIterator is the function that accepts element of slice/array and its index and returns boolean
+type ConditionIterator func(interface{}, int) bool
+
+// Each iterates over the slice and apply Iterator to every item
+func Each(array []interface{}, iterator Iterator) {
+	for index, data := range array {
+		iterator(data, index)
+	}
+}
+
+// Map iterates over the slice and apply ResultIterator to every item. Returns new slice as a result.
+func Map(array []interface{}, iterator ResultIterator) []interface{} {
+	var result = make([]interface{}, len(array))
+	for index, data := range array {
+		result[index] = iterator(data, index)
+	}
+	return result
+}
+
+// Find iterates over the slice and apply ConditionIterator to every item. Returns first item that meet ConditionIterator or nil otherwise.
+func Find(array []interface{}, iterator ConditionIterator) interface{} {
+	for index, data := range array {
+		if iterator(data, index) {
+			return data
+		}
+	}
+	return nil
+}
+
+// Filter iterates over the slice and apply ConditionIterator to every item. Returns new slice.
+func Filter(array []interface{}, iterator ConditionIterator) []interface{} {
+	var result = make([]interface{}, 0)
+	for index, data := range array {
+		if iterator(data, index) {
+			result = append(result, data)
+		}
+	}
+	return result
+}
+
+// Count iterates over the slice and apply ConditionIterator to every item. Returns count of items that meets ConditionIterator.
+func Count(array []interface{}, iterator ConditionIterator) int {
+	count := 0
+	for index, data := range array {
+		if iterator(data, index) {
+			count = count + 1
+		}
+	}
+	return count
+}
diff --git a/vendor/github.com/asaskevich/govalidator/converter.go b/vendor/github.com/asaskevich/govalidator/converter.go
new file mode 100644
index 0000000..737a1f1
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/converter.go
@@ -0,0 +1,49 @@
+package govalidator
+
+import (
+	"encoding/json"
+	"fmt"
+	"strconv"
+)
+
+// ToString convert the input to a string.
+func ToString(obj interface{}) string {
+	res := fmt.Sprintf("%v", obj)
+	return string(res)
+}
+
+// ToJSON convert the input to a valid JSON string
+func ToJSON(obj interface{}) (string, error) {
+	res, err := json.Marshal(obj)
+	if err != nil {
+		res = []byte("")
+	}
+	return string(res), err
+}
+
+// ToFloat convert the input string to a float, or 0.0 if the input is not a float.
+func ToFloat(str string) (float64, error) {
+	res, err := strconv.ParseFloat(str, 64)
+	if err != nil {
+		res = 0.0
+	}
+	return res, err
+}
+
+// ToInt convert the input string to an integer, or 0 if the input is not an integer.
+func ToInt(str string) (int64, error) {
+	res, err := strconv.ParseInt(str, 0, 64)
+	if err != nil {
+		res = 0
+	}
+	return res, err
+}
+
+// ToBoolean convert the input string to a boolean.
+func ToBoolean(str string) (bool, error) {
+	res, err := strconv.ParseBool(str)
+	if err != nil {
+		res = false
+	}
+	return res, err
+}
diff --git a/vendor/github.com/asaskevich/govalidator/error.go b/vendor/github.com/asaskevich/govalidator/error.go
new file mode 100644
index 0000000..280b1c4
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/error.go
@@ -0,0 +1,31 @@
+package govalidator
+
+// Errors is an array of multiple errors and conforms to the error interface.
+type Errors []error
+
+// Errors returns itself.
+func (es Errors) Errors() []error {
+	return es
+}
+
+func (es Errors) Error() string {
+	var err string
+	for _, e := range es {
+		err += e.Error() + ";"
+	}
+	return err
+}
+
+// Error encapsulates a name, an error and whether there's a custom error message or not.
+type Error struct {
+	Name                     string
+	Err                      error
+	CustomErrorMessageExists bool
+}
+
+func (e Error) Error() string {
+	if e.CustomErrorMessageExists {
+		return e.Err.Error()
+	}
+	return e.Name + ": " + e.Err.Error()
+}
diff --git a/vendor/github.com/asaskevich/govalidator/numerics.go b/vendor/github.com/asaskevich/govalidator/numerics.go
new file mode 100644
index 0000000..737cd47
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/numerics.go
@@ -0,0 +1,57 @@
+package govalidator
+
+import "math"
+
+// Abs returns absolute value of number
+func Abs(value float64) float64 {
+	return value * Sign(value)
+}
+
+// Sign returns signum of number: 1 in case of value > 0, -1 in case of value < 0, 0 otherwise
+func Sign(value float64) float64 {
+	if value > 0 {
+		return 1
+	} else if value < 0 {
+		return -1
+	} else {
+		return 0
+	}
+}
+
+// IsNegative returns true if value < 0
+func IsNegative(value float64) bool {
+	return value < 0
+}
+
+// IsPositive returns true if value > 0
+func IsPositive(value float64) bool {
+	return value > 0
+}
+
+// IsNonNegative returns true if value >= 0
+func IsNonNegative(value float64) bool {
+	return value >= 0
+}
+
+// IsNonPositive returns true if value <= 0
+func IsNonPositive(value float64) bool {
+	return value <= 0
+}
+
+// InRange returns true if value lies between left and right border
+func InRange(value, left, right float64) bool {
+	if left > right {
+		left, right = right, left
+	}
+	return value >= left && value <= right
+}
+
+// IsWhole returns true if value is whole number
+func IsWhole(value float64) bool {
+	return Abs(math.Remainder(value, 1)) == 0
+}
+
+// IsNatural returns true if value is natural number (positive and whole)
+func IsNatural(value float64) bool {
+	return IsWhole(value) && IsPositive(value)
+}
diff --git a/vendor/github.com/asaskevich/govalidator/patterns.go b/vendor/github.com/asaskevich/govalidator/patterns.go
new file mode 100644
index 0000000..42389bd
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/patterns.go
@@ -0,0 +1,83 @@
+package govalidator
+
+import "regexp"
+
+// Basic regular expressions for validating strings
+const (
+	Email          string = "^(((([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+(\\.([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.)+(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.?$"
+	CreditCard     string = "^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\\d{3})\\d{11})$"
+	ISBN10         string = "^(?:[0-9]{9}X|[0-9]{10})$"
+	ISBN13         string = "^(?:[0-9]{13})$"
+	UUID3          string = "^[0-9a-f]{8}-[0-9a-f]{4}-3[0-9a-f]{3}-[0-9a-f]{4}-[0-9a-f]{12}$"
+	UUID4          string = "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
+	UUID5          string = "^[0-9a-f]{8}-[0-9a-f]{4}-5[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
+	UUID           string = "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
+	Alpha          string = "^[a-zA-Z]+$"
+	Alphanumeric   string = "^[a-zA-Z0-9]+$"
+	Numeric        string = "^[-+]?[0-9]+$"
+	Int            string = "^(?:[-+]?(?:0|[1-9][0-9]*))$"
+	Float          string = "^(?:[-+]?(?:[0-9]+))?(?:\\.[0-9]*)?(?:[eE][\\+\\-]?(?:[0-9]+))?$"
+	Hexadecimal    string = "^[0-9a-fA-F]+$"
+	Hexcolor       string = "^#?([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$"
+	RGBcolor       string = "^rgb\\(\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*\\)$"
+	ASCII          string = "^[\x00-\x7F]+$"
+	Multibyte      string = "[^\x00-\x7F]"
+	FullWidth      string = "[^\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"
+	HalfWidth      string = "[\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"
+	Base64         string = "^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$"
+	PrintableASCII string = "^[\x20-\x7E]+$"
+	DataURI        string = "^data:.+\\/(.+);base64$"
+	Latitude       string = "^[-+]?([1-8]?\\d(\\.\\d+)?|90(\\.0+)?)$"
+	Longitude      string = "^[-+]?(180(\\.0+)?|((1[0-7]\\d)|([1-9]?\\d))(\\.\\d+)?)$"
+	DNSName        string = `^([a-zA-Z0-9]{1}[a-zA-Z0-9_-]{1,62}){1}(\.[a-zA-Z0-9]{1}[a-zA-Z0-9_-]{1,62})*$`
+	URL            string = `^((ftp|https?):\/\/)?(\S+(:\S*)?@)?((([1-9]\d?|1\d\d|2[01]\d|22[0-3])(\.(1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.([0-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(([a-zA-Z0-9]+([-\.][a-zA-Z0-9]+)*)|((www\.)?))?(([a-zA-Z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-zA-Z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-zA-Z\x{00a1}-\x{ffff}]{1,}))?))(:(\d{1,5}))?((\/|\?|#)[^\s]*)?$`
+	SSN            string = `^\d{3}[- ]?\d{2}[- ]?\d{4}$`
+	WinPath        string = `^[a-zA-Z]:\\(?:[^\\/:*?"<>|\r\n]+\\)*[^\\/:*?"<>|\r\n]*$`
+	UnixPath       string = `^((?:\/[a-zA-Z0-9\.\:]+(?:_[a-zA-Z0-9\:\.]+)*(?:\-[\:a-zA-Z0-9\.]+)*)+\/?)$`
+	Semver         string = "^v?(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)(-(0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(\\.(0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*)?(\\+[0-9a-zA-Z-]+(\\.[0-9a-zA-Z-]+)*)?$"
+	tagName        string = "valid"
+)
+
+// Used by IsFilePath func
+const (
+	// Unknown is unresolved OS type
+	Unknown = iota
+	// Win is Windows type
+	Win
+	// Unix is *nix OS types
+	Unix
+)
+
+var (
+	rxEmail          = regexp.MustCompile(Email)
+	rxCreditCard     = regexp.MustCompile(CreditCard)
+	rxISBN10         = regexp.MustCompile(ISBN10)
+	rxISBN13         = regexp.MustCompile(ISBN13)
+	rxUUID3          = regexp.MustCompile(UUID3)
+	rxUUID4          = regexp.MustCompile(UUID4)
+	rxUUID5          = regexp.MustCompile(UUID5)
+	rxUUID           = regexp.MustCompile(UUID)
+	rxAlpha          = regexp.MustCompile(Alpha)
+	rxAlphanumeric   = regexp.MustCompile(Alphanumeric)
+	rxNumeric        = regexp.MustCompile(Numeric)
+	rxInt            = regexp.MustCompile(Int)
+	rxFloat          = regexp.MustCompile(Float)
+	rxHexadecimal    = regexp.MustCompile(Hexadecimal)
+	rxHexcolor       = regexp.MustCompile(Hexcolor)
+	rxRGBcolor       = regexp.MustCompile(RGBcolor)
+	rxASCII          = regexp.MustCompile(ASCII)
+	rxPrintableASCII = regexp.MustCompile(PrintableASCII)
+	rxMultibyte      = regexp.MustCompile(Multibyte)
+	rxFullWidth      = regexp.MustCompile(FullWidth)
+	rxHalfWidth      = regexp.MustCompile(HalfWidth)
+	rxBase64         = regexp.MustCompile(Base64)
+	rxDataURI        = regexp.MustCompile(DataURI)
+	rxLatitude       = regexp.MustCompile(Latitude)
+	rxLongitude      = regexp.MustCompile(Longitude)
+	rxDNSName        = regexp.MustCompile(DNSName)
+	rxURL            = regexp.MustCompile(URL)
+	rxSSN            = regexp.MustCompile(SSN)
+	rxWinPath        = regexp.MustCompile(WinPath)
+	rxUnixPath       = regexp.MustCompile(UnixPath)
+	rxSemver         = regexp.MustCompile(Semver)
+)
diff --git a/vendor/github.com/asaskevich/govalidator/types.go b/vendor/github.com/asaskevich/govalidator/types.go
new file mode 100644
index 0000000..b715612
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/types.go
@@ -0,0 +1,378 @@
+package govalidator
+
+import (
+	"reflect"
+	"regexp"
+	"sync"
+)
+
+// Validator is a wrapper for a validator function that returns bool and accepts string.
+type Validator func(str string) bool
+
+// CustomTypeValidator is a wrapper for validator functions that returns bool and accepts any type.
+// The second parameter should be the context (in the case of validating a struct: the whole object being validated).
+type CustomTypeValidator func(i interface{}, o interface{}) bool
+
+// ParamValidator is a wrapper for validator functions that accepts additional parameters.
+type ParamValidator func(str string, params ...string) bool
+type tagOptionsMap map[string]string
+
+// UnsupportedTypeError is a wrapper for reflect.Type
+type UnsupportedTypeError struct {
+	Type reflect.Type
+}
+
+// stringValues is a slice of reflect.Value holding *reflect.StringValue.
+// It implements the methods to sort by string.
+type stringValues []reflect.Value
+
+// ParamTagMap is a map of functions accept variants parameters
+var ParamTagMap = map[string]ParamValidator{
+	"length":       ByteLength,
+	"stringlength": StringLength,
+	"matches":      StringMatches,
+}
+
+// ParamTagRegexMap maps param tags to their respective regexes.
+var ParamTagRegexMap = map[string]*regexp.Regexp{
+	"length":       regexp.MustCompile("^length\\((\\d+)\\|(\\d+)\\)$"),
+	"stringlength": regexp.MustCompile("^stringlength\\((\\d+)\\|(\\d+)\\)$"),
+	"matches":      regexp.MustCompile(`matches\(([^)]+)\)`),
+}
+
+type customTypeTagMap struct {
+	validators map[string]CustomTypeValidator
+
+	sync.RWMutex
+}
+
+func (tm *customTypeTagMap) Get(name string) (CustomTypeValidator, bool) {
+	tm.RLock()
+	defer tm.RUnlock()
+	v, ok := tm.validators[name]
+	return v, ok
+}
+
+func (tm *customTypeTagMap) Set(name string, ctv CustomTypeValidator) {
+	tm.Lock()
+	defer tm.Unlock()
+	tm.validators[name] = ctv
+}
+
+// CustomTypeTagMap is a map of functions that can be used as tags for ValidateStruct function.
+// Use this to validate compound or custom types that need to be handled as a whole, e.g.
+// `type UUID [16]byte` (this would be handled as an array of bytes).
+var CustomTypeTagMap = &customTypeTagMap{validators: make(map[string]CustomTypeValidator)}
+
+// TagMap is a map of functions, that can be used as tags for ValidateStruct function.
+var TagMap = map[string]Validator{
+	"email":          IsEmail,
+	"url":            IsURL,
+	"dialstring":     IsDialString,
+	"requrl":         IsRequestURL,
+	"requri":         IsRequestURI,
+	"alpha":          IsAlpha,
+	"utfletter":      IsUTFLetter,
+	"alphanum":       IsAlphanumeric,
+	"utfletternum":   IsUTFLetterNumeric,
+	"numeric":        IsNumeric,
+	"utfnumeric":     IsUTFNumeric,
+	"utfdigit":       IsUTFDigit,
+	"hexadecimal":    IsHexadecimal,
+	"hexcolor":       IsHexcolor,
+	"rgbcolor":       IsRGBcolor,
+	"lowercase":      IsLowerCase,
+	"uppercase":      IsUpperCase,
+	"int":            IsInt,
+	"float":          IsFloat,
+	"null":           IsNull,
+	"uuid":           IsUUID,
+	"uuidv3":         IsUUIDv3,
+	"uuidv4":         IsUUIDv4,
+	"uuidv5":         IsUUIDv5,
+	"creditcard":     IsCreditCard,
+	"isbn10":         IsISBN10,
+	"isbn13":         IsISBN13,
+	"json":           IsJSON,
+	"multibyte":      IsMultibyte,
+	"ascii":          IsASCII,
+	"printableascii": IsPrintableASCII,
+	"fullwidth":      IsFullWidth,
+	"halfwidth":      IsHalfWidth,
+	"variablewidth":  IsVariableWidth,
+	"base64":         IsBase64,
+	"datauri":        IsDataURI,
+	"ip":             IsIP,
+	"port":           IsPort,
+	"ipv4":           IsIPv4,
+	"ipv6":           IsIPv6,
+	"dns":            IsDNSName,
+	"host":           IsHost,
+	"mac":            IsMAC,
+	"latitude":       IsLatitude,
+	"longitude":      IsLongitude,
+	"ssn":            IsSSN,
+	"semver":         IsSemver,
+}
+
+// ISO3166Entry stores country codes
+type ISO3166Entry struct {
+	EnglishShortName string
+	FrenchShortName  string
+	Alpha2Code       string
+	Alpha3Code       string
+	Numeric          string
+}
+
+//ISO3166List based on https://www.iso.org/obp/ui/#search/code/ Code Type "Officially Assigned Codes"
+var ISO3166List = []ISO3166Entry{
+	{"Afghanistan", "Afghanistan (l')", "AF", "AFG", "004"},
+	{"Albania", "Albanie (l')", "AL", "ALB", "008"},
+	{"Antarctica", "Antarctique (l')", "AQ", "ATA", "010"},
+	{"Algeria", "Algérie (l')", "DZ", "DZA", "012"},
+	{"American Samoa", "Samoa américaines (les)", "AS", "ASM", "016"},
+	{"Andorra", "Andorre (l')", "AD", "AND", "020"},
+	{"Angola", "Angola (l')", "AO", "AGO", "024"},
+	{"Antigua and Barbuda", "Antigua-et-Barbuda", "AG", "ATG", "028"},
+	{"Azerbaijan", "Azerbaïdjan (l')", "AZ", "AZE", "031"},
+	{"Argentina", "Argentine (l')", "AR", "ARG", "032"},
+	{"Australia", "Australie (l')", "AU", "AUS", "036"},
+	{"Austria", "Autriche (l')", "AT", "AUT", "040"},
+	{"Bahamas (the)", "Bahamas (les)", "BS", "BHS", "044"},
+	{"Bahrain", "Bahreïn", "BH", "BHR", "048"},
+	{"Bangladesh", "Bangladesh (le)", "BD", "BGD", "050"},
+	{"Armenia", "Arménie (l')", "AM", "ARM", "051"},
+	{"Barbados", "Barbade (la)", "BB", "BRB", "052"},
+	{"Belgium", "Belgique (la)", "BE", "BEL", "056"},
+	{"Bermuda", "Bermudes (les)", "BM", "BMU", "060"},
+	{"Bhutan", "Bhoutan (le)", "BT", "BTN", "064"},
+	{"Bolivia (Plurinational State of)", "Bolivie (État plurinational de)", "BO", "BOL", "068"},
+	{"Bosnia and Herzegovina", "Bosnie-Herzégovine (la)", "BA", "BIH", "070"},
+	{"Botswana", "Botswana (le)", "BW", "BWA", "072"},
+	{"Bouvet Island", "Bouvet (l'Île)", "BV", "BVT", "074"},
+	{"Brazil", "Brésil (le)", "BR", "BRA", "076"},
+	{"Belize", "Belize (le)", "BZ", "BLZ", "084"},
+	{"British Indian Ocean Territory (the)", "Indien (le Territoire britannique de l'océan)", "IO", "IOT", "086"},
+	{"Solomon Islands", "Salomon (Îles)", "SB", "SLB", "090"},
+	{"Virgin Islands (British)", "Vierges britanniques (les Îles)", "VG", "VGB", "092"},
+	{"Brunei Darussalam", "Brunéi Darussalam (le)", "BN", "BRN", "096"},
+	{"Bulgaria", "Bulgarie (la)", "BG", "BGR", "100"},
+	{"Myanmar", "Myanmar (le)", "MM", "MMR", "104"},
+	{"Burundi", "Burundi (le)", "BI", "BDI", "108"},
+	{"Belarus", "Bélarus (le)", "BY", "BLR", "112"},
+	{"Cambodia", "Cambodge (le)", "KH", "KHM", "116"},
+	{"Cameroon", "Cameroun (le)", "CM", "CMR", "120"},
+	{"Canada", "Canada (le)", "CA", "CAN", "124"},
+	{"Cabo Verde", "Cabo Verde", "CV", "CPV", "132"},
+	{"Cayman Islands (the)", "Caïmans (les Îles)", "KY", "CYM", "136"},
+	{"Central African Republic (the)", "République centrafricaine (la)", "CF", "CAF", "140"},
+	{"Sri Lanka", "Sri Lanka", "LK", "LKA", "144"},
+	{"Chad", "Tchad (le)", "TD", "TCD", "148"},
+	{"Chile", "Chili (le)", "CL", "CHL", "152"},
+	{"China", "Chine (la)", "CN", "CHN", "156"},
+	{"Taiwan (Province of China)", "Taïwan (Province de Chine)", "TW", "TWN", "158"},
+	{"Christmas Island", "Christmas (l'Île)", "CX", "CXR", "162"},
+	{"Cocos (Keeling) Islands (the)", "Cocos (les Îles)/ Keeling (les Îles)", "CC", "CCK", "166"},
+	{"Colombia", "Colombie (la)", "CO", "COL", "170"},
+	{"Comoros (the)", "Comores (les)", "KM", "COM", "174"},
+	{"Mayotte", "Mayotte", "YT", "MYT", "175"},
+	{"Congo (the)", "Congo (le)", "CG", "COG", "178"},
+	{"Congo (the Democratic Republic of the)", "Congo (la République démocratique du)", "CD", "COD", "180"},
+	{"Cook Islands (the)", "Cook (les Îles)", "CK", "COK", "184"},
+	{"Costa Rica", "Costa Rica (le)", "CR", "CRI", "188"},
+	{"Croatia", "Croatie (la)", "HR", "HRV", "191"},
+	{"Cuba", "Cuba", "CU", "CUB", "192"},
+	{"Cyprus", "Chypre", "CY", "CYP", "196"},
+	{"Czech Republic (the)", "tchèque (la République)", "CZ", "CZE", "203"},
+	{"Benin", "Bénin (le)", "BJ", "BEN", "204"},
+	{"Denmark", "Danemark (le)", "DK", "DNK", "208"},
+	{"Dominica", "Dominique (la)", "DM", "DMA", "212"},
+	{"Dominican Republic (the)", "dominicaine (la République)", "DO", "DOM", "214"},
+	{"Ecuador", "Équateur (l')", "EC", "ECU", "218"},
+	{"El Salvador", "El Salvador", "SV", "SLV", "222"},
+	{"Equatorial Guinea", "Guinée équatoriale (la)", "GQ", "GNQ", "226"},
+	{"Ethiopia", "Éthiopie (l')", "ET", "ETH", "231"},
+	{"Eritrea", "Érythrée (l')", "ER", "ERI", "232"},
+	{"Estonia", "Estonie (l')", "EE", "EST", "233"},
+	{"Faroe Islands (the)", "Féroé (les Îles)", "FO", "FRO", "234"},
+	{"Falkland Islands (the) [Malvinas]", "Falkland (les Îles)/Malouines (les Îles)", "FK", "FLK", "238"},
+	{"South Georgia and the South Sandwich Islands", "Géorgie du Sud-et-les Îles Sandwich du Sud (la)", "GS", "SGS", "239"},
+	{"Fiji", "Fidji (les)", "FJ", "FJI", "242"},
+	{"Finland", "Finlande (la)", "FI", "FIN", "246"},
+	{"Åland Islands", "Åland(les Îles)", "AX", "ALA", "248"},
+	{"France", "France (la)", "FR", "FRA", "250"},
+	{"French Guiana", "Guyane française (la )", "GF", "GUF", "254"},
+	{"French Polynesia", "Polynésie française (la)", "PF", "PYF", "258"},
+	{"French Southern Territories (the)", "Terres australes françaises (les)", "TF", "ATF", "260"},
+	{"Djibouti", "Djibouti", "DJ", "DJI", "262"},
+	{"Gabon", "Gabon (le)", "GA", "GAB", "266"},
+	{"Georgia", "Géorgie (la)", "GE", "GEO", "268"},
+	{"Gambia (the)", "Gambie (la)", "GM", "GMB", "270"},
+	{"Palestine, State of", "Palestine, État de", "PS", "PSE", "275"},
+	{"Germany", "Allemagne (l')", "DE", "DEU", "276"},
+	{"Ghana", "Ghana (le)", "GH", "GHA", "288"},
+	{"Gibraltar", "Gibraltar", "GI", "GIB", "292"},
+	{"Kiribati", "Kiribati", "KI", "KIR", "296"},
+	{"Greece", "Grèce (la)", "GR", "GRC", "300"},
+	{"Greenland", "Groenland (le)", "GL", "GRL", "304"},
+	{"Grenada", "Grenade (la)", "GD", "GRD", "308"},
+	{"Guadeloupe", "Guadeloupe (la)", "GP", "GLP", "312"},
+	{"Guam", "Guam", "GU", "GUM", "316"},
+	{"Guatemala", "Guatemala (le)", "GT", "GTM", "320"},
+	{"Guinea", "Guinée (la)", "GN", "GIN", "324"},
+	{"Guyana", "Guyana (le)", "GY", "GUY", "328"},
+	{"Haiti", "Haïti", "HT", "HTI", "332"},
+	{"Heard Island and McDonald Islands", "Heard-et-Îles MacDonald (l'Île)", "HM", "HMD", "334"},
+	{"Holy See (the)", "Saint-Siège (le)", "VA", "VAT", "336"},
+	{"Honduras", "Honduras (le)", "HN", "HND", "340"},
+	{"Hong Kong", "Hong Kong", "HK", "HKG", "344"},
+	{"Hungary", "Hongrie (la)", "HU", "HUN", "348"},
+	{"Iceland", "Islande (l')", "IS", "ISL", "352"},
+	{"India", "Inde (l')", "IN", "IND", "356"},
+	{"Indonesia", "Indonésie (l')", "ID", "IDN", "360"},
+	{"Iran (Islamic Republic of)", "Iran (République Islamique d')", "IR", "IRN", "364"},
+	{"Iraq", "Iraq (l')", "IQ", "IRQ", "368"},
+	{"Ireland", "Irlande (l')", "IE", "IRL", "372"},
+	{"Israel", "Israël", "IL", "ISR", "376"},
+	{"Italy", "Italie (l')", "IT", "ITA", "380"},
+	{"Côte d'Ivoire", "Côte d'Ivoire (la)", "CI", "CIV", "384"},
+	{"Jamaica", "Jamaïque (la)", "JM", "JAM", "388"},
+	{"Japan", "Japon (le)", "JP", "JPN", "392"},
+	{"Kazakhstan", "Kazakhstan (le)", "KZ", "KAZ", "398"},
+	{"Jordan", "Jordanie (la)", "JO", "JOR", "400"},
+	{"Kenya", "Kenya (le)", "KE", "KEN", "404"},
+	{"Korea (the Democratic People's Republic of)", "Corée (la République populaire démocratique de)", "KP", "PRK", "408"},
+	{"Korea (the Republic of)", "Corée (la République de)", "KR", "KOR", "410"},
+	{"Kuwait", "Koweït (le)", "KW", "KWT", "414"},
+	{"Kyrgyzstan", "Kirghizistan (le)", "KG", "KGZ", "417"},
+	{"Lao People's Democratic Republic (the)", "Lao, République démocratique populaire", "LA", "LAO", "418"},
+	{"Lebanon", "Liban (le)", "LB", "LBN", "422"},
+	{"Lesotho", "Lesotho (le)", "LS", "LSO", "426"},
+	{"Latvia", "Lettonie (la)", "LV", "LVA", "428"},
+	{"Liberia", "Libéria (le)", "LR", "LBR", "430"},
+	{"Libya", "Libye (la)", "LY", "LBY", "434"},
+	{"Liechtenstein", "Liechtenstein (le)", "LI", "LIE", "438"},
+	{"Lithuania", "Lituanie (la)", "LT", "LTU", "440"},
+	{"Luxembourg", "Luxembourg (le)", "LU", "LUX", "442"},
+	{"Macao", "Macao", "MO", "MAC", "446"},
+	{"Madagascar", "Madagascar", "MG", "MDG", "450"},
+	{"Malawi", "Malawi (le)", "MW", "MWI", "454"},
+	{"Malaysia", "Malaisie (la)", "MY", "MYS", "458"},
+	{"Maldives", "Maldives (les)", "MV", "MDV", "462"},
+	{"Mali", "Mali (le)", "ML", "MLI", "466"},
+	{"Malta", "Malte", "MT", "MLT", "470"},
+	{"Martinique", "Martinique (la)", "MQ", "MTQ", "474"},
+	{"Mauritania", "Mauritanie (la)", "MR", "MRT", "478"},
+	{"Mauritius", "Maurice", "MU", "MUS", "480"},
+	{"Mexico", "Mexique (le)", "MX", "MEX", "484"},
+	{"Monaco", "Monaco", "MC", "MCO", "492"},
+	{"Mongolia", "Mongolie (la)", "MN", "MNG", "496"},
+	{"Moldova (the Republic of)", "Moldova , République de", "MD", "MDA", "498"},
+	{"Montenegro", "Monténégro (le)", "ME", "MNE", "499"},
+	{"Montserrat", "Montserrat", "MS", "MSR", "500"},
+	{"Morocco", "Maroc (le)", "MA", "MAR", "504"},
+	{"Mozambique", "Mozambique (le)", "MZ", "MOZ", "508"},
+	{"Oman", "Oman", "OM", "OMN", "512"},
+	{"Namibia", "Namibie (la)", "NA", "NAM", "516"},
+	{"Nauru", "Nauru", "NR", "NRU", "520"},
+	{"Nepal", "Népal (le)", "NP", "NPL", "524"},
+	{"Netherlands (the)", "Pays-Bas (les)", "NL", "NLD", "528"},
+	{"Curaçao", "Curaçao", "CW", "CUW", "531"},
+	{"Aruba", "Aruba", "AW", "ABW", "533"},
+	{"Sint Maarten (Dutch part)", "Saint-Martin (partie néerlandaise)", "SX", "SXM", "534"},
+	{"Bonaire, Sint Eustatius and Saba", "Bonaire, Saint-Eustache et Saba", "BQ", "BES", "535"},
+	{"New Caledonia", "Nouvelle-Calédonie (la)", "NC", "NCL", "540"},
+	{"Vanuatu", "Vanuatu (le)", "VU", "VUT", "548"},
+	{"New Zealand", "Nouvelle-Zélande (la)", "NZ", "NZL", "554"},
+	{"Nicaragua", "Nicaragua (le)", "NI", "NIC", "558"},
+	{"Niger (the)", "Niger (le)", "NE", "NER", "562"},
+	{"Nigeria", "Nigéria (le)", "NG", "NGA", "566"},
+	{"Niue", "Niue", "NU", "NIU", "570"},
+	{"Norfolk Island", "Norfolk (l'Île)", "NF", "NFK", "574"},
+	{"Norway", "Norvège (la)", "NO", "NOR", "578"},
+	{"Northern Mariana Islands (the)", "Mariannes du Nord (les Îles)", "MP", "MNP", "580"},
+	{"United States Minor Outlying Islands (the)", "Îles mineures éloignées des États-Unis (les)", "UM", "UMI", "581"},
+	{"Micronesia (Federated States of)", "Micronésie (États fédérés de)", "FM", "FSM", "583"},
+	{"Marshall Islands (the)", "Marshall (Îles)", "MH", "MHL", "584"},
+	{"Palau", "Palaos (les)", "PW", "PLW", "585"},
+	{"Pakistan", "Pakistan (le)", "PK", "PAK", "586"},
+	{"Panama", "Panama (le)", "PA", "PAN", "591"},
+	{"Papua New Guinea", "Papouasie-Nouvelle-Guinée (la)", "PG", "PNG", "598"},
+	{"Paraguay", "Paraguay (le)", "PY", "PRY", "600"},
+	{"Peru", "Pérou (le)", "PE", "PER", "604"},
+	{"Philippines (the)", "Philippines (les)", "PH", "PHL", "608"},
+	{"Pitcairn", "Pitcairn", "PN", "PCN", "612"},
+	{"Poland", "Pologne (la)", "PL", "POL", "616"},
+	{"Portugal", "Portugal (le)", "PT", "PRT", "620"},
+	{"Guinea-Bissau", "Guinée-Bissau (la)", "GW", "GNB", "624"},
+	{"Timor-Leste", "Timor-Leste (le)", "TL", "TLS", "626"},
+	{"Puerto Rico", "Porto Rico", "PR", "PRI", "630"},
+	{"Qatar", "Qatar (le)", "QA", "QAT", "634"},
+	{"Réunion", "Réunion (La)", "RE", "REU", "638"},
+	{"Romania", "Roumanie (la)", "RO", "ROU", "642"},
+	{"Russian Federation (the)", "Russie (la Fédération de)", "RU", "RUS", "643"},
+	{"Rwanda", "Rwanda (le)", "RW", "RWA", "646"},
+	{"Saint Barthélemy", "Saint-Barthélemy", "BL", "BLM", "652"},
+	{"Saint Helena, Ascension and Tristan da Cunha", "Sainte-Hélène, Ascension et Tristan da Cunha", "SH", "SHN", "654"},
+	{"Saint Kitts and Nevis", "Saint-Kitts-et-Nevis", "KN", "KNA", "659"},
+	{"Anguilla", "Anguilla", "AI", "AIA", "660"},
+	{"Saint Lucia", "Sainte-Lucie", "LC", "LCA", "662"},
+	{"Saint Martin (French part)", "Saint-Martin (partie française)", "MF", "MAF", "663"},
+	{"Saint Pierre and Miquelon", "Saint-Pierre-et-Miquelon", "PM", "SPM", "666"},
+	{"Saint Vincent and the Grenadines", "Saint-Vincent-et-les Grenadines", "VC", "VCT", "670"},
+	{"San Marino", "Saint-Marin", "SM", "SMR", "674"},
+	{"Sao Tome and Principe", "Sao Tomé-et-Principe", "ST", "STP", "678"},
+	{"Saudi Arabia", "Arabie saoudite (l')", "SA", "SAU", "682"},
+	{"Senegal", "Sénégal (le)", "SN", "SEN", "686"},
+	{"Serbia", "Serbie (la)", "RS", "SRB", "688"},
+	{"Seychelles", "Seychelles (les)", "SC", "SYC", "690"},
+	{"Sierra Leone", "Sierra Leone (la)", "SL", "SLE", "694"},
+	{"Singapore", "Singapour", "SG", "SGP", "702"},
+	{"Slovakia", "Slovaquie (la)", "SK", "SVK", "703"},
+	{"Viet Nam", "Viet Nam (le)", "VN", "VNM", "704"},
+	{"Slovenia", "Slovénie (la)", "SI", "SVN", "705"},
+	{"Somalia", "Somalie (la)", "SO", "SOM", "706"},
+	{"South Africa", "Afrique du Sud (l')", "ZA", "ZAF", "710"},
+	{"Zimbabwe", "Zimbabwe (le)", "ZW", "ZWE", "716"},
+	{"Spain", "Espagne (l')", "ES", "ESP", "724"},
+	{"South Sudan", "Soudan du Sud (le)", "SS", "SSD", "728"},
+	{"Sudan (the)", "Soudan (le)", "SD", "SDN", "729"},
+	{"Western Sahara*", "Sahara occidental (le)*", "EH", "ESH", "732"},
+	{"Suriname", "Suriname (le)", "SR", "SUR", "740"},
+	{"Svalbard and Jan Mayen", "Svalbard et l'Île Jan Mayen (le)", "SJ", "SJM", "744"},
+	{"Swaziland", "Swaziland (le)", "SZ", "SWZ", "748"},
+	{"Sweden", "Suède (la)", "SE", "SWE", "752"},
+	{"Switzerland", "Suisse (la)", "CH", "CHE", "756"},
+	{"Syrian Arab Republic", "République arabe syrienne (la)", "SY", "SYR", "760"},
+	{"Tajikistan", "Tadjikistan (le)", "TJ", "TJK", "762"},
+	{"Thailand", "Thaïlande (la)", "TH", "THA", "764"},
+	{"Togo", "Togo (le)", "TG", "TGO", "768"},
+	{"Tokelau", "Tokelau (les)", "TK", "TKL", "772"},
+	{"Tonga", "Tonga (les)", "TO", "TON", "776"},
+	{"Trinidad and Tobago", "Trinité-et-Tobago (la)", "TT", "TTO", "780"},
+	{"United Arab Emirates (the)", "Émirats arabes unis (les)", "AE", "ARE", "784"},
+	{"Tunisia", "Tunisie (la)", "TN", "TUN", "788"},
+	{"Turkey", "Turquie (la)", "TR", "TUR", "792"},
+	{"Turkmenistan", "Turkménistan (le)", "TM", "TKM", "795"},
+	{"Turks and Caicos Islands (the)", "Turks-et-Caïcos (les Îles)", "TC", "TCA", "796"},
+	{"Tuvalu", "Tuvalu (les)", "TV", "TUV", "798"},
+	{"Uganda", "Ouganda (l')", "UG", "UGA", "800"},
+	{"Ukraine", "Ukraine (l')", "UA", "UKR", "804"},
+	{"Macedonia (the former Yugoslav Republic of)", "Macédoine (l'ex‑République yougoslave de)", "MK", "MKD", "807"},
+	{"Egypt", "Égypte (l')", "EG", "EGY", "818"},
+	{"United Kingdom of Great Britain and Northern Ireland (the)", "Royaume-Uni de Grande-Bretagne et d'Irlande du Nord (le)", "GB", "GBR", "826"},
+	{"Guernsey", "Guernesey", "GG", "GGY", "831"},
+	{"Jersey", "Jersey", "JE", "JEY", "832"},
+	{"Isle of Man", "Île de Man", "IM", "IMN", "833"},
+	{"Tanzania, United Republic of", "Tanzanie, République-Unie de", "TZ", "TZA", "834"},
+	{"United States of America (the)", "États-Unis d'Amérique (les)", "US", "USA", "840"},
+	{"Virgin Islands (U.S.)", "Vierges des États-Unis (les Îles)", "VI", "VIR", "850"},
+	{"Burkina Faso", "Burkina Faso (le)", "BF", "BFA", "854"},
+	{"Uruguay", "Uruguay (l')", "UY", "URY", "858"},
+	{"Uzbekistan", "Ouzbékistan (l')", "UZ", "UZB", "860"},
+	{"Venezuela (Bolivarian Republic of)", "Venezuela (République bolivarienne du)", "VE", "VEN", "862"},
+	{"Wallis and Futuna", "Wallis-et-Futuna", "WF", "WLF", "876"},
+	{"Samoa", "Samoa (le)", "WS", "WSM", "882"},
+	{"Yemen", "Yémen (le)", "YE", "YEM", "887"},
+	{"Zambia", "Zambie (la)", "ZM", "ZMB", "894"},
+}
diff --git a/vendor/github.com/asaskevich/govalidator/utils.go b/vendor/github.com/asaskevich/govalidator/utils.go
new file mode 100644
index 0000000..200b913
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/utils.go
@@ -0,0 +1,213 @@
+package govalidator
+
+import (
+	"errors"
+	"fmt"
+	"html"
+	"path"
+	"regexp"
+	"strings"
+	"unicode"
+)
+
+// Contains check if the string contains the substring.
+func Contains(str, substring string) bool {
+	return strings.Contains(str, substring)
+}
+
+// Matches check if string matches the pattern (pattern is regular expression)
+// In case of error return false
+func Matches(str, pattern string) bool {
+	match, _ := regexp.MatchString(pattern, str)
+	return match
+}
+
+// LeftTrim trim characters from the left-side of the input.
+// If second argument is empty, it's will be remove leading spaces.
+func LeftTrim(str, chars string) string {
+	pattern := ""
+	if chars == "" {
+		pattern = "^\\s+"
+	} else {
+		pattern = "^[" + chars + "]+"
+	}
+	r, _ := regexp.Compile(pattern)
+	return string(r.ReplaceAll([]byte(str), []byte("")))
+}
+
+// RightTrim trim characters from the right-side of the input.
+// If second argument is empty, it's will be remove spaces.
+func RightTrim(str, chars string) string {
+	pattern := ""
+	if chars == "" {
+		pattern = "\\s+$"
+	} else {
+		pattern = "[" + chars + "]+$"
+	}
+	r, _ := regexp.Compile(pattern)
+	return string(r.ReplaceAll([]byte(str), []byte("")))
+}
+
+// Trim trim characters from both sides of the input.
+// If second argument is empty, it's will be remove spaces.
+func Trim(str, chars string) string {
+	return LeftTrim(RightTrim(str, chars), chars)
+}
+
+// WhiteList remove characters that do not appear in the whitelist.
+func WhiteList(str, chars string) string {
+	pattern := "[^" + chars + "]+"
+	r, _ := regexp.Compile(pattern)
+	return string(r.ReplaceAll([]byte(str), []byte("")))
+}
+
+// BlackList remove characters that appear in the blacklist.
+func BlackList(str, chars string) string {
+	pattern := "[" + chars + "]+"
+	r, _ := regexp.Compile(pattern)
+	return string(r.ReplaceAll([]byte(str), []byte("")))
+}
+
+// StripLow remove characters with a numerical value < 32 and 127, mostly control characters.
+// If keep_new_lines is true, newline characters are preserved (\n and \r, hex 0xA and 0xD).
+func StripLow(str string, keepNewLines bool) string {
+	chars := ""
+	if keepNewLines {
+		chars = "\x00-\x09\x0B\x0C\x0E-\x1F\x7F"
+	} else {
+		chars = "\x00-\x1F\x7F"
+	}
+	return BlackList(str, chars)
+}
+
+// ReplacePattern replace regular expression pattern in string
+func ReplacePattern(str, pattern, replace string) string {
+	r, _ := regexp.Compile(pattern)
+	return string(r.ReplaceAll([]byte(str), []byte(replace)))
+}
+
+// Escape replace <, >, & and " with HTML entities.
+var Escape = html.EscapeString
+
+func addSegment(inrune, segment []rune) []rune {
+	if len(segment) == 0 {
+		return inrune
+	}
+	if len(inrune) != 0 {
+		inrune = append(inrune, '_')
+	}
+	inrune = append(inrune, segment...)
+	return inrune
+}
+
+// UnderscoreToCamelCase converts from underscore separated form to camel case form.
+// Ex.: my_func => MyFunc
+func UnderscoreToCamelCase(s string) string {
+	return strings.Replace(strings.Title(strings.Replace(strings.ToLower(s), "_", " ", -1)), " ", "", -1)
+}
+
+// CamelCaseToUnderscore converts from camel case form to underscore separated form.
+// Ex.: MyFunc => my_func
+func CamelCaseToUnderscore(str string) string {
+	var output []rune
+	var segment []rune
+	for _, r := range str {
+		if !unicode.IsLower(r) {
+			output = addSegment(output, segment)
+			segment = nil
+		}
+		segment = append(segment, unicode.ToLower(r))
+	}
+	output = addSegment(output, segment)
+	return string(output)
+}
+
+// Reverse return reversed string
+func Reverse(s string) string {
+	r := []rune(s)
+	for i, j := 0, len(r)-1; i < j; i, j = i+1, j-1 {
+		r[i], r[j] = r[j], r[i]
+	}
+	return string(r)
+}
+
+// GetLines split string by "\n" and return array of lines
+func GetLines(s string) []string {
+	return strings.Split(s, "\n")
+}
+
+// GetLine return specified line of multiline string
+func GetLine(s string, index int) (string, error) {
+	lines := GetLines(s)
+	if index < 0 || index >= len(lines) {
+		return "", errors.New("line index out of bounds")
+	}
+	return lines[index], nil
+}
+
+// RemoveTags remove all tags from HTML string
+func RemoveTags(s string) string {
+	return ReplacePattern(s, "<[^>]*>", "")
+}
+
+// SafeFileName return safe string that can be used in file names
+func SafeFileName(str string) string {
+	name := strings.ToLower(str)
+	name = path.Clean(path.Base(name))
+	name = strings.Trim(name, " ")
+	separators, err := regexp.Compile(`[ &_=+:]`)
+	if err == nil {
+		name = separators.ReplaceAllString(name, "-")
+	}
+	legal, err := regexp.Compile(`[^[:alnum:]-.]`)
+	if err == nil {
+		name = legal.ReplaceAllString(name, "")
+	}
+	for strings.Contains(name, "--") {
+		name = strings.Replace(name, "--", "-", -1)
+	}
+	return name
+}
+
+// NormalizeEmail canonicalize an email address.
+// The local part of the email address is lowercased for all domains; the hostname is always lowercased and
+// the local part of the email address is always lowercased for hosts that are known to be case-insensitive (currently only GMail).
+// Normalization follows special rules for known providers: currently, GMail addresses have dots removed in the local part and
+// are stripped of tags (e.g. some.one+tag@gmail.com becomes someone@gmail.com) and all @googlemail.com addresses are
+// normalized to @gmail.com.
+func NormalizeEmail(str string) (string, error) {
+	if !IsEmail(str) {
+		return "", fmt.Errorf("%s is not an email", str)
+	}
+	parts := strings.Split(str, "@")
+	parts[0] = strings.ToLower(parts[0])
+	parts[1] = strings.ToLower(parts[1])
+	if parts[1] == "gmail.com" || parts[1] == "googlemail.com" {
+		parts[1] = "gmail.com"
+		parts[0] = strings.Split(ReplacePattern(parts[0], `\.`, ""), "+")[0]
+	}
+	return strings.Join(parts, "@"), nil
+}
+
+// Truncate a string to the closest length without breaking words.
+func Truncate(str string, length int, ending string) string {
+	var aftstr, befstr string
+	if len(str) > length {
+		words := strings.Fields(str)
+		before, present := 0, 0
+		for i := range words {
+			befstr = aftstr
+			before = present
+			aftstr = aftstr + words[i] + " "
+			present = len(aftstr)
+			if present > length && i != 0 {
+				if (length - before) < (present - length) {
+					return Trim(befstr, " /\\.,\"'#!?&@+-") + ending
+				}
+				return Trim(aftstr, " /\\.,\"'#!?&@+-") + ending
+			}
+		}
+	}
+
+	return str
+}
diff --git a/vendor/github.com/asaskevich/govalidator/validator.go b/vendor/github.com/asaskevich/govalidator/validator.go
new file mode 100644
index 0000000..494f31f
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/validator.go
@@ -0,0 +1,921 @@
+// Package govalidator is package of validators and sanitizers for strings, structs and collections.
+package govalidator
+
+import (
+	"encoding/json"
+	"fmt"
+	"net"
+	"net/url"
+	"reflect"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+
+	"unicode"
+	"unicode/utf8"
+)
+
+var fieldsRequiredByDefault bool
+
+// SetFieldsRequiredByDefault causes validation to fail when struct fields
+// do not include validations or are not explicitly marked as exempt (using `valid:"-"` or `valid:"email,optional"`).
+// This struct definition will fail govalidator.ValidateStruct() (and the field values do not matter):
+//     type exampleStruct struct {
+//         Name  string ``
+//         Email string `valid:"email"`
+// This, however, will only fail when Email is empty or an invalid email address:
+//     type exampleStruct2 struct {
+//         Name  string `valid:"-"`
+//         Email string `valid:"email"`
+// Lastly, this will only fail when Email is an invalid email address but not when it's empty:
+//     type exampleStruct2 struct {
+//         Name  string `valid:"-"`
+//         Email string `valid:"email,optional"`
+func SetFieldsRequiredByDefault(value bool) {
+	fieldsRequiredByDefault = value
+}
+
+// IsEmail check if the string is an email.
+func IsEmail(str string) bool {
+	// TODO uppercase letters are not supported
+	return rxEmail.MatchString(str)
+}
+
+// IsURL check if the string is an URL.
+func IsURL(str string) bool {
+	if str == "" || len(str) >= 2083 || len(str) <= 3 || strings.HasPrefix(str, ".") {
+		return false
+	}
+	u, err := url.Parse(str)
+	if err != nil {
+		return false
+	}
+	if strings.HasPrefix(u.Host, ".") {
+		return false
+	}
+	if u.Host == "" && (u.Path != "" && !strings.Contains(u.Path, ".")) {
+		return false
+	}
+	return rxURL.MatchString(str)
+
+}
+
+// IsRequestURL check if the string rawurl, assuming
+// it was recieved in an HTTP request, is a valid
+// URL confirm to RFC 3986
+func IsRequestURL(rawurl string) bool {
+	url, err := url.ParseRequestURI(rawurl)
+	if err != nil {
+		return false //Couldn't even parse the rawurl
+	}
+	if len(url.Scheme) == 0 {
+		return false //No Scheme found
+	}
+	return true
+}
+
+// IsRequestURI check if the string rawurl, assuming
+// it was recieved in an HTTP request, is an
+// absolute URI or an absolute path.
+func IsRequestURI(rawurl string) bool {
+	_, err := url.ParseRequestURI(rawurl)
+	return err == nil
+}
+
+// IsAlpha check if the string contains only letters (a-zA-Z). Empty string is valid.
+func IsAlpha(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxAlpha.MatchString(str)
+}
+
+//IsUTFLetter check if the string contains only unicode letter characters.
+//Similar to IsAlpha but for all languages. Empty string is valid.
+func IsUTFLetter(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+
+	for _, c := range str {
+		if !unicode.IsLetter(c) {
+			return false
+		}
+	}
+	return true
+
+}
+
+// IsAlphanumeric check if the string contains only letters and numbers. Empty string is valid.
+func IsAlphanumeric(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxAlphanumeric.MatchString(str)
+}
+
+// IsUTFLetterNumeric check if the string contains only unicode letters and numbers. Empty string is valid.
+func IsUTFLetterNumeric(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	for _, c := range str {
+		if !unicode.IsLetter(c) && !unicode.IsNumber(c) { //letters && numbers are ok
+			return false
+		}
+	}
+	return true
+
+}
+
+// IsNumeric check if the string contains only numbers. Empty string is valid.
+func IsNumeric(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxNumeric.MatchString(str)
+}
+
+// IsUTFNumeric check if the string contains only unicode numbers of any kind.
+// Numbers can be 0-9 but also Fractions ¾,Roman Ⅸ and Hangzhou 〩. Empty string is valid.
+func IsUTFNumeric(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	if strings.IndexAny(str, "+-") > 0 {
+		return false
+	}
+	if len(str) > 1 {
+		str = strings.TrimPrefix(str, "-")
+		str = strings.TrimPrefix(str, "+")
+	}
+	for _, c := range str {
+		if unicode.IsNumber(c) == false { //numbers && minus sign are ok
+			return false
+		}
+	}
+	return true
+
+}
+
+// IsUTFDigit check if the string contains only unicode radix-10 decimal digits. Empty string is valid.
+func IsUTFDigit(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	if strings.IndexAny(str, "+-") > 0 {
+		return false
+	}
+	if len(str) > 1 {
+		str = strings.TrimPrefix(str, "-")
+		str = strings.TrimPrefix(str, "+")
+	}
+	for _, c := range str {
+		if !unicode.IsDigit(c) { //digits && minus sign are ok
+			return false
+		}
+	}
+	return true
+
+}
+
+// IsHexadecimal check if the string is a hexadecimal number.
+func IsHexadecimal(str string) bool {
+	return rxHexadecimal.MatchString(str)
+}
+
+// IsHexcolor check if the string is a hexadecimal color.
+func IsHexcolor(str string) bool {
+	return rxHexcolor.MatchString(str)
+}
+
+// IsRGBcolor check if the string is a valid RGB color in form rgb(RRR, GGG, BBB).
+func IsRGBcolor(str string) bool {
+	return rxRGBcolor.MatchString(str)
+}
+
+// IsLowerCase check if the string is lowercase. Empty string is valid.
+func IsLowerCase(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return str == strings.ToLower(str)
+}
+
+// IsUpperCase check if the string is uppercase. Empty string is valid.
+func IsUpperCase(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return str == strings.ToUpper(str)
+}
+
+// IsInt check if the string is an integer. Empty string is valid.
+func IsInt(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxInt.MatchString(str)
+}
+
+// IsFloat check if the string is a float.
+func IsFloat(str string) bool {
+	return str != "" && rxFloat.MatchString(str)
+}
+
+// IsDivisibleBy check if the string is a number that's divisible by another.
+// If second argument is not valid integer or zero, it's return false.
+// Otherwise, if first argument is not valid integer or zero, it's return true (Invalid string converts to zero).
+func IsDivisibleBy(str, num string) bool {
+	f, _ := ToFloat(str)
+	p := int64(f)
+	q, _ := ToInt(num)
+	if q == 0 {
+		return false
+	}
+	return (p == 0) || (p%q == 0)
+}
+
+// IsNull check if the string is null.
+func IsNull(str string) bool {
+	return len(str) == 0
+}
+
+// IsByteLength check if the string's length (in bytes) falls in a range.
+func IsByteLength(str string, min, max int) bool {
+	return len(str) >= min && len(str) <= max
+}
+
+// IsUUIDv3 check if the string is a UUID version 3.
+func IsUUIDv3(str string) bool {
+	return rxUUID3.MatchString(str)
+}
+
+// IsUUIDv4 check if the string is a UUID version 4.
+func IsUUIDv4(str string) bool {
+	return rxUUID4.MatchString(str)
+}
+
+// IsUUIDv5 check if the string is a UUID version 5.
+func IsUUIDv5(str string) bool {
+	return rxUUID5.MatchString(str)
+}
+
+// IsUUID check if the string is a UUID (version 3, 4 or 5).
+func IsUUID(str string) bool {
+	return rxUUID.MatchString(str)
+}
+
+// IsCreditCard check if the string is a credit card.
+func IsCreditCard(str string) bool {
+	r, _ := regexp.Compile("[^0-9]+")
+	sanitized := r.ReplaceAll([]byte(str), []byte(""))
+	if !rxCreditCard.MatchString(string(sanitized)) {
+		return false
+	}
+	var sum int64
+	var digit string
+	var tmpNum int64
+	var shouldDouble bool
+	for i := len(sanitized) - 1; i >= 0; i-- {
+		digit = string(sanitized[i:(i + 1)])
+		tmpNum, _ = ToInt(digit)
+		if shouldDouble {
+			tmpNum *= 2
+			if tmpNum >= 10 {
+				sum += ((tmpNum % 10) + 1)
+			} else {
+				sum += tmpNum
+			}
+		} else {
+			sum += tmpNum
+		}
+		shouldDouble = !shouldDouble
+	}
+
+	if sum%10 == 0 {
+		return true
+	}
+	return false
+}
+
+// IsISBN10 check if the string is an ISBN version 10.
+func IsISBN10(str string) bool {
+	return IsISBN(str, 10)
+}
+
+// IsISBN13 check if the string is an ISBN version 13.
+func IsISBN13(str string) bool {
+	return IsISBN(str, 13)
+}
+
+// IsISBN check if the string is an ISBN (version 10 or 13).
+// If version value is not equal to 10 or 13, it will be check both variants.
+func IsISBN(str string, version int) bool {
+	r, _ := regexp.Compile("[\\s-]+")
+	sanitized := r.ReplaceAll([]byte(str), []byte(""))
+	var checksum int32
+	var i int32
+	if version == 10 {
+		if !rxISBN10.MatchString(string(sanitized)) {
+			return false
+		}
+		for i = 0; i < 9; i++ {
+			checksum += (i + 1) * int32(sanitized[i]-'0')
+		}
+		if sanitized[9] == 'X' {
+			checksum += 10 * 10
+		} else {
+			checksum += 10 * int32(sanitized[9]-'0')
+		}
+		if checksum%11 == 0 {
+			return true
+		}
+		return false
+	} else if version == 13 {
+		if !rxISBN13.MatchString(string(sanitized)) {
+			return false
+		}
+		factor := []int32{1, 3}
+		for i = 0; i < 12; i++ {
+			checksum += factor[i%2] * int32(sanitized[i]-'0')
+		}
+		if (int32(sanitized[12]-'0'))-((10-(checksum%10))%10) == 0 {
+			return true
+		}
+		return false
+	}
+	return IsISBN(str, 10) || IsISBN(str, 13)
+}
+
+// IsJSON check if the string is valid JSON (note: uses json.Unmarshal).
+func IsJSON(str string) bool {
+	var js json.RawMessage
+	return json.Unmarshal([]byte(str), &js) == nil
+}
+
+// IsMultibyte check if the string contains one or more multibyte chars. Empty string is valid.
+func IsMultibyte(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxMultibyte.MatchString(str)
+}
+
+// IsASCII check if the string contains ASCII chars only. Empty string is valid.
+func IsASCII(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxASCII.MatchString(str)
+}
+
+// IsPrintableASCII check if the string contains printable ASCII chars only. Empty string is valid.
+func IsPrintableASCII(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxPrintableASCII.MatchString(str)
+}
+
+// IsFullWidth check if the string contains any full-width chars. Empty string is valid.
+func IsFullWidth(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxFullWidth.MatchString(str)
+}
+
+// IsHalfWidth check if the string contains any half-width chars. Empty string is valid.
+func IsHalfWidth(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxHalfWidth.MatchString(str)
+}
+
+// IsVariableWidth check if the string contains a mixture of full and half-width chars. Empty string is valid.
+func IsVariableWidth(str string) bool {
+	if IsNull(str) {
+		return true
+	}
+	return rxHalfWidth.MatchString(str) && rxFullWidth.MatchString(str)
+}
+
+// IsBase64 check if a string is base64 encoded.
+func IsBase64(str string) bool {
+	return rxBase64.MatchString(str)
+}
+
+// IsFilePath check is a string is Win or Unix file path and returns it's type.
+func IsFilePath(str string) (bool, int) {
+	if rxWinPath.MatchString(str) {
+		//check windows path limit see:
+		//  http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx#maxpath
+		if len(str[3:]) > 32767 {
+			return false, Win
+		}
+		return true, Win
+	} else if rxUnixPath.MatchString(str) {
+		return true, Unix
+	}
+	return false, Unknown
+}
+
+// IsDataURI checks if a string is base64 encoded data URI such as an image
+func IsDataURI(str string) bool {
+	dataURI := strings.Split(str, ",")
+	if !rxDataURI.MatchString(dataURI[0]) {
+		return false
+	}
+	return IsBase64(dataURI[1])
+}
+
+// IsISO3166Alpha2 checks if a string is valid two-letter country code
+func IsISO3166Alpha2(str string) bool {
+	for _, entry := range ISO3166List {
+		if str == entry.Alpha2Code {
+			return true
+		}
+	}
+	return false
+}
+
+// IsISO3166Alpha3 checks if a string is valid three-letter country code
+func IsISO3166Alpha3(str string) bool {
+	for _, entry := range ISO3166List {
+		if str == entry.Alpha3Code {
+			return true
+		}
+	}
+	return false
+}
+
+// IsDNSName will validate the given string as a DNS name
+func IsDNSName(str string) bool {
+	if str == "" || len(strings.Replace(str, ".", "", -1)) > 255 {
+		// constraints already violated
+		return false
+	}
+	return rxDNSName.MatchString(str)
+}
+
+// IsDialString validates the given string for usage with the various Dial() functions
+func IsDialString(str string) bool {
+
+	if h, p, err := net.SplitHostPort(str); err == nil && h != "" && p != "" && (IsDNSName(h) || IsIP(h)) && IsPort(p) {
+		return true
+	}
+
+	return false
+}
+
+// IsIP checks if a string is either IP version 4 or 6.
+func IsIP(str string) bool {
+	return net.ParseIP(str) != nil
+}
+
+// IsPort checks if a string represents a valid port
+func IsPort(str string) bool {
+	if i, err := strconv.Atoi(str); err == nil && i > 0 && i < 65536 {
+		return true
+	}
+	return false
+}
+
+// IsIPv4 check if the string is an IP version 4.
+func IsIPv4(str string) bool {
+	ip := net.ParseIP(str)
+	return ip != nil && strings.Contains(str, ".")
+}
+
+// IsIPv6 check if the string is an IP version 6.
+func IsIPv6(str string) bool {
+	ip := net.ParseIP(str)
+	return ip != nil && strings.Contains(str, ":")
+}
+
+// IsMAC check if a string is valid MAC address.
+// Possible MAC formats:
+// 01:23:45:67:89:ab
+// 01:23:45:67:89:ab:cd:ef
+// 01-23-45-67-89-ab
+// 01-23-45-67-89-ab-cd-ef
+// 0123.4567.89ab
+// 0123.4567.89ab.cdef
+func IsMAC(str string) bool {
+	_, err := net.ParseMAC(str)
+	return err == nil
+}
+
+// IsHost checks if the string is a valid IP (both v4 and v6) or a valid DNS name
+func IsHost(str string) bool {
+	return IsIP(str) || IsDNSName(str)
+}
+
+// IsMongoID check if the string is a valid hex-encoded representation of a MongoDB ObjectId.
+func IsMongoID(str string) bool {
+	return rxHexadecimal.MatchString(str) && (len(str) == 24)
+}
+
+// IsLatitude check if a string is valid latitude.
+func IsLatitude(str string) bool {
+	return rxLatitude.MatchString(str)
+}
+
+// IsLongitude check if a string is valid longitude.
+func IsLongitude(str string) bool {
+	return rxLongitude.MatchString(str)
+}
+
+// ValidateStruct use tags for fields.
+// result will be equal to `false` if there are any errors.
+func ValidateStruct(s interface{}) (bool, error) {
+	if s == nil {
+		return true, nil
+	}
+	result := true
+	var err error
+	val := reflect.ValueOf(s)
+	if val.Kind() == reflect.Interface || val.Kind() == reflect.Ptr {
+		val = val.Elem()
+	}
+	// we only accept structs
+	if val.Kind() != reflect.Struct {
+		return false, fmt.Errorf("function only accepts structs; got %s", val.Kind())
+	}
+	var errs Errors
+	for i := 0; i < val.NumField(); i++ {
+		valueField := val.Field(i)
+		typeField := val.Type().Field(i)
+		if typeField.PkgPath != "" {
+			continue // Private field
+		}
+		resultField, err2 := typeCheck(valueField, typeField, val)
+		if err2 != nil {
+			errs = append(errs, err2)
+		}
+		result = result && resultField
+	}
+	if len(errs) > 0 {
+		err = errs
+	}
+	return result, err
+}
+
+// parseTagIntoMap parses a struct tag `valid:required~Some error message,length(2|3)` into map[string]string{"required": "Some error message", "length(2|3)": ""}
+func parseTagIntoMap(tag string) tagOptionsMap {
+	optionsMap := make(tagOptionsMap)
+	options := strings.SplitN(tag, ",", -1)
+	for _, option := range options {
+		validationOptions := strings.Split(option, "~")
+		if !isValidTag(validationOptions[0]) {
+			continue
+		}
+		if len(validationOptions) == 2 {
+			optionsMap[validationOptions[0]] = validationOptions[1]
+		} else {
+			optionsMap[validationOptions[0]] = ""
+		}
+	}
+	return optionsMap
+}
+
+func isValidTag(s string) bool {
+	if s == "" {
+		return false
+	}
+	for _, c := range s {
+		switch {
+		case strings.ContainsRune("!#$%&()*+-./:<=>?@[]^_{|}~ ", c):
+			// Backslash and quote chars are reserved, but
+			// otherwise any punctuation chars are allowed
+			// in a tag name.
+		default:
+			if !unicode.IsLetter(c) && !unicode.IsDigit(c) {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+// IsSSN will validate the given string as a U.S. Social Security Number
+func IsSSN(str string) bool {
+	if str == "" || len(str) != 11 {
+		return false
+	}
+	return rxSSN.MatchString(str)
+}
+
+// IsSemver check if string is valid semantic version
+func IsSemver(str string) bool {
+	return rxSemver.MatchString(str)
+}
+
+// ByteLength check string's length
+func ByteLength(str string, params ...string) bool {
+	if len(params) == 2 {
+		min, _ := ToInt(params[0])
+		max, _ := ToInt(params[1])
+		return len(str) >= int(min) && len(str) <= int(max)
+	}
+
+	return false
+}
+
+// StringMatches checks if a string matches a given pattern.
+func StringMatches(s string, params ...string) bool {
+	if len(params) == 1 {
+		pattern := params[0]
+		return Matches(s, pattern)
+	}
+	return false
+}
+
+// StringLength check string's length (including multi byte strings)
+func StringLength(str string, params ...string) bool {
+
+	if len(params) == 2 {
+		strLength := utf8.RuneCountInString(str)
+		min, _ := ToInt(params[0])
+		max, _ := ToInt(params[1])
+		return strLength >= int(min) && strLength <= int(max)
+	}
+
+	return false
+}
+
+func checkRequired(v reflect.Value, t reflect.StructField, options tagOptionsMap) (bool, error) {
+	if requiredOption, isRequired := options["required"]; isRequired {
+		if len(requiredOption) > 0 {
+			return false, Error{t.Name, fmt.Errorf(requiredOption), true}
+		}
+		return false, Error{t.Name, fmt.Errorf("non zero value required"), false}
+	} else if _, isOptional := options["optional"]; fieldsRequiredByDefault && !isOptional {
+		return false, Error{t.Name, fmt.Errorf("All fields are required to at least have one validation defined"), false}
+	}
+	// not required and empty is valid
+	return true, nil
+}
+
+func typeCheck(v reflect.Value, t reflect.StructField, o reflect.Value) (bool, error) {
+	if !v.IsValid() {
+		return false, nil
+	}
+
+	tag := t.Tag.Get(tagName)
+
+	// Check if the field should be ignored
+	switch tag {
+	case "":
+		if !fieldsRequiredByDefault {
+			return true, nil
+		}
+		return false, Error{t.Name, fmt.Errorf("All fields are required to at least have one validation defined"), false}
+	case "-":
+		return true, nil
+	}
+
+	options := parseTagIntoMap(tag)
+	var customTypeErrors Errors
+	var customTypeValidatorsExist bool
+	for validatorName, customErrorMessage := range options {
+		if validatefunc, ok := CustomTypeTagMap.Get(validatorName); ok {
+			customTypeValidatorsExist = true
+			if result := validatefunc(v.Interface(), o.Interface()); !result {
+				if len(customErrorMessage) > 0 {
+					customTypeErrors = append(customTypeErrors, Error{Name: t.Name, Err: fmt.Errorf(customErrorMessage), CustomErrorMessageExists: true})
+					continue
+				}
+				customTypeErrors = append(customTypeErrors, Error{Name: t.Name, Err: fmt.Errorf("%s does not validate as %s", fmt.Sprint(v), validatorName), CustomErrorMessageExists: false})
+			}
+		}
+	}
+	if customTypeValidatorsExist {
+		if len(customTypeErrors.Errors()) > 0 {
+			return false, customTypeErrors
+		}
+		return true, nil
+	}
+
+	if isEmptyValue(v) {
+		// an empty value is not validated, check only required
+		return checkRequired(v, t, options)
+	}
+
+	switch v.Kind() {
+	case reflect.Bool,
+		reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
+		reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr,
+		reflect.Float32, reflect.Float64,
+		reflect.String:
+		// for each tag option check the map of validator functions
+		for validator, customErrorMessage := range options {
+			var negate bool
+			customMsgExists := (len(customErrorMessage) > 0)
+			// Check wether the tag looks like '!something' or 'something'
+			if validator[0] == '!' {
+				validator = string(validator[1:])
+				negate = true
+			}
+
+			// Check for param validators
+			for key, value := range ParamTagRegexMap {
+				ps := value.FindStringSubmatch(validator)
+				if len(ps) > 0 {
+					if validatefunc, ok := ParamTagMap[key]; ok {
+						switch v.Kind() {
+						case reflect.String:
+							field := fmt.Sprint(v) // make value into string, then validate with regex
+							if result := validatefunc(field, ps[1:]...); (!result && !negate) || (result && negate) {
+								var err error
+								if !negate {
+									if customMsgExists {
+										err = fmt.Errorf(customErrorMessage)
+									} else {
+										err = fmt.Errorf("%s does not validate as %s", field, validator)
+									}
+
+								} else {
+									if customMsgExists {
+										err = fmt.Errorf(customErrorMessage)
+									} else {
+										err = fmt.Errorf("%s does validate as %s", field, validator)
+									}
+								}
+								return false, Error{t.Name, err, customMsgExists}
+							}
+						default:
+							// type not yet supported, fail
+							return false, Error{t.Name, fmt.Errorf("Validator %s doesn't support kind %s", validator, v.Kind()), false}
+						}
+					}
+				}
+			}
+
+			if validatefunc, ok := TagMap[validator]; ok {
+				switch v.Kind() {
+				case reflect.String:
+					field := fmt.Sprint(v) // make value into string, then validate with regex
+					if result := validatefunc(field); !result && !negate || result && negate {
+						var err error
+
+						if !negate {
+							if customMsgExists {
+								err = fmt.Errorf(customErrorMessage)
+							} else {
+								err = fmt.Errorf("%s does not validate as %s", field, validator)
+							}
+						} else {
+							if customMsgExists {
+								err = fmt.Errorf(customErrorMessage)
+							} else {
+								err = fmt.Errorf("%s does validate as %s", field, validator)
+							}
+						}
+						return false, Error{t.Name, err, customMsgExists}
+					}
+				default:
+					//Not Yet Supported Types (Fail here!)
+					err := fmt.Errorf("Validator %s doesn't support kind %s for value %v", validator, v.Kind(), v)
+					return false, Error{t.Name, err, false}
+				}
+			}
+		}
+		return true, nil
+	case reflect.Map:
+		if v.Type().Key().Kind() != reflect.String {
+			return false, &UnsupportedTypeError{v.Type()}
+		}
+		var sv stringValues
+		sv = v.MapKeys()
+		sort.Sort(sv)
+		result := true
+		for _, k := range sv {
+			resultItem, err := ValidateStruct(v.MapIndex(k).Interface())
+			if err != nil {
+				return false, err
+			}
+			result = result && resultItem
+		}
+		return result, nil
+	case reflect.Slice:
+		result := true
+		for i := 0; i < v.Len(); i++ {
+			var resultItem bool
+			var err error
+			if v.Index(i).Kind() != reflect.Struct {
+				resultItem, err = typeCheck(v.Index(i), t, o)
+				if err != nil {
+					return false, err
+				}
+			} else {
+				resultItem, err = ValidateStruct(v.Index(i).Interface())
+				if err != nil {
+					return false, err
+				}
+			}
+			result = result && resultItem
+		}
+		return result, nil
+	case reflect.Array:
+		result := true
+		for i := 0; i < v.Len(); i++ {
+			var resultItem bool
+			var err error
+			if v.Index(i).Kind() != reflect.Struct {
+				resultItem, err = typeCheck(v.Index(i), t, o)
+				if err != nil {
+					return false, err
+				}
+			} else {
+				resultItem, err = ValidateStruct(v.Index(i).Interface())
+				if err != nil {
+					return false, err
+				}
+			}
+			result = result && resultItem
+		}
+		return result, nil
+	case reflect.Interface:
+		// If the value is an interface then encode its element
+		if v.IsNil() {
+			return true, nil
+		}
+		return ValidateStruct(v.Interface())
+	case reflect.Ptr:
+		// If the value is a pointer then check its element
+		if v.IsNil() {
+			return true, nil
+		}
+		return typeCheck(v.Elem(), t, o)
+	case reflect.Struct:
+		return ValidateStruct(v.Interface())
+	default:
+		return false, &UnsupportedTypeError{v.Type()}
+	}
+}
+
+func isEmptyValue(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.String, reflect.Array:
+		return v.Len() == 0
+	case reflect.Map, reflect.Slice:
+		return v.Len() == 0 || v.IsNil()
+	case reflect.Bool:
+		return !v.Bool()
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.Interface, reflect.Ptr:
+		return v.IsNil()
+	}
+
+	return reflect.DeepEqual(v.Interface(), reflect.Zero(v.Type()).Interface())
+}
+
+// ErrorByField returns error for specified field of the struct
+// validated by ValidateStruct or empty string if there are no errors
+// or this field doesn't exists or doesn't have any errors.
+func ErrorByField(e error, field string) string {
+	if e == nil {
+		return ""
+	}
+	return ErrorsByField(e)[field]
+}
+
+// ErrorsByField returns map of errors of the struct validated
+// by ValidateStruct or empty map if there are no errors.
+func ErrorsByField(e error) map[string]string {
+	m := make(map[string]string)
+	if e == nil {
+		return m
+	}
+	// prototype for ValidateStruct
+
+	switch e.(type) {
+	case Error:
+		m[e.(Error).Name] = e.(Error).Err.Error()
+	case Errors:
+		for _, item := range e.(Errors).Errors() {
+			m[item.(Error).Name] = item.(Error).Err.Error()
+		}
+	}
+
+	return m
+}
+
+// Error returns string equivalent for reflect.Type
+func (e *UnsupportedTypeError) Error() string {
+	return "validator: unsupported type: " + e.Type.String()
+}
+
+func (sv stringValues) Len() int           { return len(sv) }
+func (sv stringValues) Swap(i, j int)      { sv[i], sv[j] = sv[j], sv[i] }
+func (sv stringValues) Less(i, j int) bool { return sv.get(i) < sv.get(j) }
+func (sv stringValues) get(i int) string   { return sv[i].String() }
diff --git a/vendor/github.com/asaskevich/govalidator/wercker.yml b/vendor/github.com/asaskevich/govalidator/wercker.yml
new file mode 100644
index 0000000..4840449
--- /dev/null
+++ b/vendor/github.com/asaskevich/govalidator/wercker.yml
@@ -0,0 +1,15 @@
+box: wercker/golang
+build:
+  steps:
+    - setup-go-workspace
+
+    - script:
+        name: go get
+        code: |
+          go version
+          go get -t ./...
+
+    - script:
+        name: go test
+        code: |
+          go test -race ./...
diff --git a/vendor/github.com/mitchellh/go-homedir/LICENSE b/vendor/github.com/mitchellh/go-homedir/LICENSE
new file mode 100644
index 0000000..f9c841a
--- /dev/null
+++ b/vendor/github.com/mitchellh/go-homedir/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Mitchell Hashimoto
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/github.com/mitchellh/go-homedir/README.md b/vendor/github.com/mitchellh/go-homedir/README.md
new file mode 100644
index 0000000..d70706d
--- /dev/null
+++ b/vendor/github.com/mitchellh/go-homedir/README.md
@@ -0,0 +1,14 @@
+# go-homedir
+
+This is a Go library for detecting the user's home directory without
+the use of cgo, so the library can be used in cross-compilation environments.
+
+Usage is incredibly simple, just call `homedir.Dir()` to get the home directory
+for a user, and `homedir.Expand()` to expand the `~` in a path to the home
+directory.
+
+**Why not just use `os/user`?** The built-in `os/user` package requires
+cgo on Darwin systems. This means that any Go code that uses that package
+cannot cross compile. But 99% of the time the use for `os/user` is just to
+retrieve the home directory, which we can do for the current user without
+cgo. This library does that, enabling cross-compilation.
diff --git a/vendor/github.com/mitchellh/go-homedir/homedir.go b/vendor/github.com/mitchellh/go-homedir/homedir.go
new file mode 100644
index 0000000..086514b
--- /dev/null
+++ b/vendor/github.com/mitchellh/go-homedir/homedir.go
@@ -0,0 +1,132 @@
+package homedir
+
+import (
+	"bytes"
+	"errors"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strconv"
+	"strings"
+	"sync"
+)
+
+// DisableCache will disable caching of the home directory. Caching is enabled
+// by default.
+var DisableCache bool
+
+var homedirCache string
+var cacheLock sync.RWMutex
+
+// Dir returns the home directory for the executing user.
+//
+// This uses an OS-specific method for discovering the home directory.
+// An error is returned if a home directory cannot be detected.
+func Dir() (string, error) {
+	if !DisableCache {
+		cacheLock.RLock()
+		cached := homedirCache
+		cacheLock.RUnlock()
+		if cached != "" {
+			return cached, nil
+		}
+	}
+
+	cacheLock.Lock()
+	defer cacheLock.Unlock()
+
+	var result string
+	var err error
+	if runtime.GOOS == "windows" {
+		result, err = dirWindows()
+	} else {
+		// Unix-like system, so just assume Unix
+		result, err = dirUnix()
+	}
+
+	if err != nil {
+		return "", err
+	}
+	homedirCache = result
+	return result, nil
+}
+
+// Expand expands the path to include the home directory if the path
+// is prefixed with `~`. If it isn't prefixed with `~`, the path is
+// returned as-is.
+func Expand(path string) (string, error) {
+	if len(path) == 0 {
+		return path, nil
+	}
+
+	if path[0] != '~' {
+		return path, nil
+	}
+
+	if len(path) > 1 && path[1] != '/' && path[1] != '\\' {
+		return "", errors.New("cannot expand user-specific home dir")
+	}
+
+	dir, err := Dir()
+	if err != nil {
+		return "", err
+	}
+
+	return filepath.Join(dir, path[1:]), nil
+}
+
+func dirUnix() (string, error) {
+	// First prefer the HOME environmental variable
+	if home := os.Getenv("HOME"); home != "" {
+		return home, nil
+	}
+
+	// If that fails, try getent
+	var stdout bytes.Buffer
+	cmd := exec.Command("getent", "passwd", strconv.Itoa(os.Getuid()))
+	cmd.Stdout = &stdout
+	if err := cmd.Run(); err != nil {
+		// If "getent" is missing, ignore it
+		if err == exec.ErrNotFound {
+			return "", err
+		}
+	} else {
+		if passwd := strings.TrimSpace(stdout.String()); passwd != "" {
+			// username:password:uid:gid:gecos:home:shell
+			passwdParts := strings.SplitN(passwd, ":", 7)
+			if len(passwdParts) > 5 {
+				return passwdParts[5], nil
+			}
+		}
+	}
+
+	// If all else fails, try the shell
+	stdout.Reset()
+	cmd = exec.Command("sh", "-c", "cd && pwd")
+	cmd.Stdout = &stdout
+	if err := cmd.Run(); err != nil {
+		return "", err
+	}
+
+	result := strings.TrimSpace(stdout.String())
+	if result == "" {
+		return "", errors.New("blank output when reading home directory")
+	}
+
+	return result, nil
+}
+
+func dirWindows() (string, error) {
+	drive := os.Getenv("HOMEDRIVE")
+	path := os.Getenv("HOMEPATH")
+	home := drive + path
+	if drive == "" || path == "" {
+		home = os.Getenv("USERPROFILE")
+	}
+	if home == "" {
+		return "", errors.New("HOMEDRIVE, HOMEPATH, and USERPROFILE are blank")
+	}
+
+	return home, nil
+}
diff --git a/vendor/github.com/nightlyone/lockfile/.gitignore b/vendor/github.com/nightlyone/lockfile/.gitignore
new file mode 100644
index 0000000..5a05665
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/.gitignore
@@ -0,0 +1,27 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# popular temporaries
+.err
+.out
+.diff
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
diff --git a/vendor/github.com/nightlyone/lockfile/.gitmodules b/vendor/github.com/nightlyone/lockfile/.gitmodules
new file mode 100644
index 0000000..6faa9e3
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "git-hooks"]
+	path = git-hooks
+	url = https://github.com/nightlyone/git-hooks
diff --git a/vendor/github.com/nightlyone/lockfile/.travis.yml b/vendor/github.com/nightlyone/lockfile/.travis.yml
new file mode 100644
index 0000000..f1309c9
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/.travis.yml
@@ -0,0 +1,2 @@
+language: go
+
diff --git a/vendor/github.com/nightlyone/lockfile/LICENSE b/vendor/github.com/nightlyone/lockfile/LICENSE
new file mode 100644
index 0000000..eb5b804
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2012 Ingo Oeser
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/github.com/nightlyone/lockfile/README.md b/vendor/github.com/nightlyone/lockfile/README.md
new file mode 100644
index 0000000..54ee19c
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/README.md
@@ -0,0 +1,52 @@
+lockfile
+=========
+Handle locking via pid files.
+
+[![Build Status Unix][1]][2]
+[![Build status Windows][3]][4]
+
+[1]: https://secure.travis-ci.org/nightlyone/lockfile.png
+[2]: https://travis-ci.org/nightlyone/lockfile
+[3]: https://ci.appveyor.com/api/projects/status/7mojkmauj81uvp8u/branch/master?svg=true
+[4]: https://ci.appveyor.com/project/nightlyone/lockfile/branch/master
+
+
+
+install
+-------
+Install [Go 1][5], either [from source][6] or [with a prepackaged binary][7].
+For Windows suport, Go 1.4 or newer is required.
+
+Then run
+
+	go get github.com/nightlyone/lockfile
+
+[5]: http://golang.org
+[6]: http://golang.org/doc/install/source
+[7]: http://golang.org/doc/install
+
+LICENSE
+-------
+BSD
+
+documentation
+-------------
+[package documentation at godoc.org](http://godoc.org/github.com/nightlyone/lockfile)
+
+install
+-------------------
+	go get github.com/nightlyone/lockfile
+
+
+contributing
+============
+
+Contributions are welcome. Please open an issue or send me a pull request for a dedicated branch.
+Make sure the git commit hooks show it works.
+
+git commit hooks
+-----------------------
+enable commit hooks via
+
+        cd .git ; rm -rf hooks; ln -s ../git-hooks hooks ; cd ..
+
diff --git a/vendor/github.com/nightlyone/lockfile/appveyor.yml b/vendor/github.com/nightlyone/lockfile/appveyor.yml
new file mode 100644
index 0000000..cf72a58
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/appveyor.yml
@@ -0,0 +1,12 @@
+clone_folder: c:\gopath\src\github.com\nightlyone\lockfile
+
+environment:
+  GOPATH: c:\gopath
+
+install:
+  - go version
+  - go env
+  - go get -v -t ./...
+
+build_script:
+  - go test -v ./...
diff --git a/vendor/github.com/nightlyone/lockfile/lockfile.go b/vendor/github.com/nightlyone/lockfile/lockfile.go
new file mode 100644
index 0000000..89d41fe
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/lockfile.go
@@ -0,0 +1,125 @@
+// Handle pid file based locking.
+package lockfile
+
+import (
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+)
+
+type Lockfile string
+
+var (
+	ErrBusy        = errors.New("Locked by other process") // If you get this, retry after a short sleep might help
+	ErrNeedAbsPath = errors.New("Lockfiles must be given as absolute path names")
+	ErrInvalidPid  = errors.New("Lockfile contains invalid pid for system")
+	ErrDeadOwner   = errors.New("Lockfile contains pid of process not existent on this system anymore")
+)
+
+// Describe a new filename located at path. It is expected to be an absolute path
+func New(path string) (Lockfile, error) {
+	if !filepath.IsAbs(path) {
+		return Lockfile(""), ErrNeedAbsPath
+	}
+	return Lockfile(path), nil
+}
+
+// Who owns the lockfile?
+func (l Lockfile) GetOwner() (*os.Process, error) {
+	name := string(l)
+
+	// Ok, see, if we have a stale lockfile here
+	content, err := ioutil.ReadFile(name)
+	if err != nil {
+		return nil, err
+	}
+
+	var pid int
+	_, err = fmt.Sscanln(string(content), &pid)
+	if err != nil {
+		return nil, ErrInvalidPid
+	}
+
+	// try hard for pids. If no pid, the lockfile is junk anyway and we delete it.
+	if pid > 0 {
+		p, err := os.FindProcess(pid)
+		if err != nil {
+			return nil, err
+		}
+		return p, isProcessAlive(p)
+	} else {
+		return nil, ErrInvalidPid
+	}
+	panic("Not reached")
+}
+
+// Try to get Lockfile lock. Returns nil, if successful and and error describing the reason, it didn't work out.
+// Please note, that existing lockfiles containing pids of dead processes and lockfiles containing no pid at all
+// are deleted.
+func (l Lockfile) TryLock() error {
+	name := string(l)
+
+	// This has been checked by New already. If we trigger here,
+	// the caller didn't use New and re-implemented it's functionality badly.
+	// So panic, that he might find this easily during testing.
+	if !filepath.IsAbs(string(name)) {
+		panic(ErrNeedAbsPath)
+	}
+
+	tmplock, err := ioutil.TempFile(filepath.Dir(name), "")
+	if err != nil {
+		return err
+	} else {
+		defer tmplock.Close()
+		defer os.Remove(tmplock.Name())
+	}
+
+	_, err = tmplock.WriteString(fmt.Sprintf("%d\n", os.Getpid()))
+	if err != nil {
+		return err
+	}
+
+	// return value intentionally ignored, as ignoring it is part of the algorithm
+	_ = os.Link(tmplock.Name(), name)
+
+	fiTmp, err := os.Lstat(tmplock.Name())
+	if err != nil {
+		return err
+	}
+	fiLock, err := os.Lstat(name)
+	if err != nil {
+		return err
+	}
+
+	// Success
+	if os.SameFile(fiTmp, fiLock) {
+		return nil
+	}
+
+	_, err = l.GetOwner()
+	switch err {
+	default:
+		// Other errors -> defensively fail and let caller handle this
+		return err
+	case nil:
+		return ErrBusy
+	case ErrDeadOwner, ErrInvalidPid:
+		// cases we can fix below
+	}
+
+	// clean stale/invalid lockfile
+	err = os.Remove(name)
+	if err != nil {
+		return err
+	}
+
+	// now that we cleaned up the stale lockfile, let's recurse
+	return l.TryLock()
+}
+
+// Release a lock again. Returns any error that happend during release of lock.
+func (l Lockfile) Unlock() error {
+	return os.Remove(string(l))
+}
diff --git a/vendor/github.com/nightlyone/lockfile/lockfile_unix.go b/vendor/github.com/nightlyone/lockfile/lockfile_unix.go
new file mode 100644
index 0000000..7c780ea
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/lockfile_unix.go
@@ -0,0 +1,28 @@
+// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
+
+package lockfile
+
+import (
+	"os"
+	"syscall"
+)
+
+func isProcessAlive(p *os.Process) error {
+	err := p.Signal(os.Signal(syscall.Signal(0)))
+	if err == nil {
+		return nil
+	}
+	errno, ok := err.(syscall.Errno)
+	if !ok {
+		return ErrDeadOwner
+	}
+
+	switch errno {
+	case syscall.ESRCH:
+		return ErrDeadOwner
+	case syscall.EPERM:
+		return nil
+	default:
+		return err
+	}
+}
diff --git a/vendor/github.com/nightlyone/lockfile/lockfile_windows.go b/vendor/github.com/nightlyone/lockfile/lockfile_windows.go
new file mode 100644
index 0000000..d8c3f63
--- /dev/null
+++ b/vendor/github.com/nightlyone/lockfile/lockfile_windows.go
@@ -0,0 +1,32 @@
+package lockfile
+
+import (
+	"os"
+	"reflect"
+	"syscall"
+)
+
+func isProcessAlive(p *os.Process) error {
+	// Extract handle value from the os.Process struct to avoid the need
+	// of a second, manually opened process handle.
+	value := reflect.ValueOf(p)
+	// Dereference *os.Process to os.Process
+	value = value.Elem()
+	field := value.FieldByName("handle")
+
+	handle := syscall.Handle(field.Uint())
+
+	var code uint32
+	err := syscall.GetExitCodeProcess(handle, &code)
+	if err != nil {
+		return err
+	}
+
+	// code will contain the exit code of the process or 259 (STILL_ALIVE)
+	// if the process has not exited yet.
+	if code == 259 {
+		return nil
+	}
+
+	return ErrDeadOwner
+}
diff --git a/vendor/github.com/onsi/ginkgo/.gitignore b/vendor/github.com/onsi/ginkgo/.gitignore
new file mode 100644
index 0000000..922b4f7
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/.gitignore
@@ -0,0 +1,4 @@
+.DS_Store
+TODO
+tmp/**/*
+*.coverprofile
\ No newline at end of file
diff --git a/vendor/github.com/onsi/ginkgo/.travis.yml b/vendor/github.com/onsi/ginkgo/.travis.yml
new file mode 100644
index 0000000..ce0af44
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/.travis.yml
@@ -0,0 +1,15 @@
+language: go
+go:
+  - 1.3
+  - 1.4
+  - 1.5
+  - tip
+
+install:
+  - go get -v ./...
+  - go get golang.org/x/tools/cmd/cover
+  - go get github.com/onsi/gomega
+  - go install github.com/onsi/ginkgo/ginkgo
+  - export PATH=$PATH:$HOME/gopath/bin
+
+script: $HOME/gopath/bin/ginkgo -r --randomizeAllSpecs --randomizeSuites --race --trace
diff --git a/vendor/github.com/onsi/ginkgo/CHANGELOG.md b/vendor/github.com/onsi/ginkgo/CHANGELOG.md
new file mode 100644
index 0000000..438c8c1
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/CHANGELOG.md
@@ -0,0 +1,136 @@
+## HEAD
+
+Improvements:
+
+- `Skip(message)` can be used to skip the current test.
+- Added `extensions/table` - a Ginkgo DSL for [Table Driven Tests](http://onsi.github.io/ginkgo/#table-driven-tests)
+
+Bug Fixes:
+
+- Ginkgo tests now fail when you `panic(nil)` (#167)
+
+## 1.2.0 5/31/2015
+
+Improvements
+
+- `ginkgo -coverpkg` calls down to `go test -coverpkg` (#160)
+- `ginkgo -afterSuiteHook COMMAND` invokes the passed-in `COMMAND` after a test suite completes (#152)
+- Relaxed requirement for Go 1.4+.  `ginkgo` now works with Go v1.3+ (#166)
+
+## 1.2.0-beta
+
+Ginkgo now requires Go 1.4+
+
+Improvements:
+
+- Call reporters in reverse order when announcing spec completion -- allows custom reporters to emit output before the default reporter does.
+- Improved focus behavior.  Now, this:
+
+    ```golang
+    FDescribe("Some describe", func() {
+        It("A", func() {})
+
+        FIt("B", func() {})
+    })
+    ```
+
+  will run `B` but *not* `A`.  This tends to be a common usage pattern when in the thick of writing and debugging tests.
+- When `SIGINT` is received, Ginkgo will emit the contents of the `GinkgoWriter` before running the `AfterSuite`.  Useful for debugging stuck tests.
+- When `--progress` is set, Ginkgo will write test progress (in particular, Ginkgo will say when it is about to run a BeforeEach, AfterEach, It, etc...) to the `GinkgoWriter`.  This is useful for debugging stuck tests and tests that generate many logs.
+- Improved output when an error occurs in a setup or teardown block.
+- When `--dryRun` is set, Ginkgo will walk the spec tree and emit to its reporter *without* actually running anything.  Best paired with `-v` to understand which specs will run in which order.
+- Add `By` to help document long `It`s.  `By` simply writes to the `GinkgoWriter`.
+- Add support for precompiled tests:
+    - `ginkgo build <path-to-package>` will now compile the package, producing a file named `package.test`
+    - The compiled `package.test` file can be run directly.  This runs the tests in series.
+    - To run precompiled tests in parallel, you can run: `ginkgo -p package.test`
+- Support `bootstrap`ping and `generate`ing [Agouti](http://agouti.org) specs.
+- `ginkgo generate` and `ginkgo bootstrap` now honor the package name already defined in a given directory
+- The `ginkgo` CLI ignores `SIGQUIT`.  Prevents its stack dump from interlacing with the underlying test suite's stack dump.
+- The `ginkgo` CLI now compiles tests into a temporary directory instead of the package directory.  This necessitates upgrading to Go v1.4+.
+- `ginkgo -notify` now works on Linux
+
+Bug Fixes:
+
+- If --skipPackages is used and all packages are skipped, Ginkgo should exit 0.
+- Fix tempfile leak when running in parallel
+- Fix incorrect failure message when a panic occurs during a parallel test run
+- Fixed an issue where a pending test within a focused context (or a focused test within a pending context) would skip all other tests.
+- Be more consistent about handling SIGTERM as well as SIGINT
+- When interupted while concurrently compiling test suites in the background, Ginkgo now cleans up the compiled artifacts.
+- Fixed a long standing bug where `ginkgo -p` would hang if a process spawned by one of the Ginkgo parallel nodes does not exit. (Hooray!)
+
+## 1.1.0 (8/2/2014)
+
+No changes, just dropping the beta.
+
+## 1.1.0-beta (7/22/2014)
+New Features:
+
+- `ginkgo watch` now monitors packages *and their dependencies* for changes.  The depth of the dependency tree can be modified with the `-depth` flag.
+- Test suites with a programmatic focus (`FIt`, `FDescribe`, etc...) exit with non-zero status code, evne when they pass.  This allows CI systems to detect accidental commits of focused test suites.
+- `ginkgo -p` runs the testsuite in parallel with an auto-detected number of nodes.
+- `ginkgo -tags=TAG_LIST` passes a list of tags down to the `go build` command.
+- `ginkgo --failFast` aborts the test suite after the first failure.
+- `ginkgo generate file_1 file_2` can take multiple file arguments.
+- Ginkgo now summarizes any spec failures that occured at the end of the test run. 
+- `ginkgo --randomizeSuites` will run tests *suites* in random order using the generated/passed-in seed.
+
+Improvements:
+
+- `ginkgo -skipPackage` now takes a comma-separated list of strings.  If the *relative path* to a package matches one of the entries in the comma-separated list, that package is skipped.
+- `ginkgo --untilItFails` no longer recompiles between attempts.
+- Ginkgo now panics when a runnable node (`It`, `BeforeEach`, `JustBeforeEach`, `AfterEach`, `Measure`) is nested within another runnable node.  This is always a mistake.  Any test suites that panic because of this change should be fixed.
+
+Bug Fixes:
+
+- `ginkgo boostrap` and `ginkgo generate` no longer fail when dealing with `hyphen-separated-packages`.
+- parallel specs are now better distributed across nodes - fixed a crashing bug where (for example) distributing 11 tests across 7 nodes would panic
+
+## 1.0.0 (5/24/2014)
+New Features:
+
+- Add `GinkgoParallelNode()` - shorthand for `config.GinkgoConfig.ParallelNode`
+
+Improvements:
+
+- When compilation fails, the compilation output is rewritten to present a correct *relative* path.  Allows ⌘-clicking in iTerm open the file in your text editor.
+- `--untilItFails` and `ginkgo watch` now generate new random seeds between test runs, unless a particular random seed is specified.
+
+Bug Fixes:
+
+- `-cover` now generates a correctly combined coverprofile when running with in parallel with multiple `-node`s.
+- Print out the contents of the `GinkgoWriter` when `BeforeSuite` or `AfterSuite` fail.
+- Fix all remaining race conditions in Ginkgo's test suite.
+
+## 1.0.0-beta (4/14/2014)
+Breaking changes:
+
+- `thirdparty/gomocktestreporter` is gone.  Use `GinkgoT()` instead
+- Modified the Reporter interface 
+- `watch` is now a subcommand, not a flag.
+
+DSL changes:
+
+- `BeforeSuite` and `AfterSuite` for setting up and tearing down test suites.
+- `AfterSuite` is triggered on interrupt (`^C`) as well as exit.
+- `SynchronizedBeforeSuite` and `SynchronizedAfterSuite` for setting up and tearing down singleton resources across parallel nodes.
+
+CLI changes:
+
+- `watch` is now a subcommand, not a flag
+- `--nodot` flag can be passed to `ginkgo generate` and `ginkgo bootstrap` to avoid dot imports.  This explicitly imports all exported identifiers in Ginkgo and Gomega.  Refreshing this list can be done by running `ginkgo nodot`
+- Additional arguments can be passed to specs.  Pass them after the `--` separator
+- `--skipPackage` flag takes a regexp and ignores any packages with package names passing said regexp.
+- `--trace` flag prints out full stack traces when errors occur, not just the line at which the error occurs.
+
+Misc:
+
+- Start using semantic versioning
+- Start maintaining changelog
+
+Major refactor:
+
+- Pull out Ginkgo's internal to `internal`
+- Rename `example` everywhere to `spec`
+- Much more!
diff --git a/vendor/github.com/onsi/ginkgo/LICENSE b/vendor/github.com/onsi/ginkgo/LICENSE
new file mode 100644
index 0000000..9415ee7
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2013-2014 Onsi Fakhouri
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/onsi/ginkgo/README.md b/vendor/github.com/onsi/ginkgo/README.md
new file mode 100644
index 0000000..b8b77b5
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/README.md
@@ -0,0 +1,115 @@
+![Ginkgo: A Golang BDD Testing Framework](http://onsi.github.io/ginkgo/images/ginkgo.png)
+
+[![Build Status](https://travis-ci.org/onsi/ginkgo.png)](https://travis-ci.org/onsi/ginkgo)
+
+Jump to the [docs](http://onsi.github.io/ginkgo/) to learn more.  To start rolling your Ginkgo tests *now* [keep reading](#set-me-up)!
+
+To discuss Ginkgo and get updates, join the [google group](https://groups.google.com/d/forum/ginkgo-and-gomega).
+
+## Feature List
+
+- Ginkgo uses Go's `testing` package and can live alongside your existing `testing` tests.  It's easy to [bootstrap](http://onsi.github.io/ginkgo/#bootstrapping-a-suite) and start writing your [first tests](http://onsi.github.io/ginkgo/#adding-specs-to-a-suite)
+
+- Structure your BDD-style tests expressively:
+    - Nestable [`Describe` and `Context` container blocks](http://onsi.github.io/ginkgo/#organizing-specs-with-containers-describe-and-context)
+    - [`BeforeEach` and `AfterEach` blocks](http://onsi.github.io/ginkgo/#extracting-common-setup-beforeeach) for setup and teardown
+    - [`It` blocks](http://onsi.github.io/ginkgo/#individual-specs-) that hold your assertions
+    - [`JustBeforeEach` blocks](http://onsi.github.io/ginkgo/#separating-creation-and-configuration-justbeforeeach) that separate creation from configuration (also known as the subject action pattern).
+    - [`BeforeSuite` and `AfterSuite` blocks](http://onsi.github.io/ginkgo/#global-setup-and-teardown-beforesuite-and-aftersuite) to prep for and cleanup after a suite.
+
+- A comprehensive test runner that lets you:
+    - Mark specs as [pending](http://onsi.github.io/ginkgo/#pending-specs)
+    - [Focus](http://onsi.github.io/ginkgo/#focused-specs) individual specs, and groups of specs, either programmatically or on the command line
+    - Run your tests in [random order](http://onsi.github.io/ginkgo/#spec-permutation), and then reuse random seeds to replicate the same order.
+    - Break up your test suite into parallel processes for straightforward [test parallelization](http://onsi.github.io/ginkgo/#parallel-specs)
+
+- `ginkgo`: a command line interface with plenty of handy command line arguments for [running your tests](http://onsi.github.io/ginkgo/#running-tests) and [generating](http://onsi.github.io/ginkgo/#generators) test files.  Here are a few choice examples:
+    - `ginkgo -nodes=N` runs your tests in `N` parallel processes and print out coherent output in realtime
+    - `ginkgo -cover` runs your tests using Golang's code coverage tool
+    - `ginkgo convert` converts an XUnit-style `testing` package to a Ginkgo-style package
+    - `ginkgo -focus="REGEXP"` and `ginkgo -skip="REGEXP"` allow you to specify a subset of tests to run via regular expression
+    - `ginkgo -r` runs all tests suites under the current directory
+    - `ginkgo -v` prints out identifying information for each tests just before it runs
+
+    And much more: run `ginkgo help` for details!
+
+    The `ginkgo` CLI is convenient, but purely optional -- Ginkgo works just fine with `go test`
+
+- `ginkgo watch` [watches](https://onsi.github.io/ginkgo/#watching-for-changes) packages *and their dependencies* for changes, then reruns tests.  Run tests immediately as you develop!
+
+- Built-in support for testing [asynchronicity](http://onsi.github.io/ginkgo/#asynchronous-tests)
+
+- Built-in support for [benchmarking](http://onsi.github.io/ginkgo/#benchmark-tests) your code.  Control the number of benchmark samples as you gather runtimes and other, arbitrary, bits of numerical information about your code. 
+
+- [Completions for Sublime Text](https://github.com/onsi/ginkgo-sublime-completions): just use [Package Control](https://sublime.wbond.net/) to install `Ginkgo Completions`.
+
+- Straightforward support for third-party testing libraries such as [Gomock](https://code.google.com/p/gomock/) and [Testify](https://github.com/stretchr/testify).  Check out the [docs](http://onsi.github.io/ginkgo/#third-party-integrations) for details.
+
+- A modular architecture that lets you easily:
+    - Write [custom reporters](http://onsi.github.io/ginkgo/#writing-custom-reporters) (for example, Ginkgo comes with a [JUnit XML reporter](http://onsi.github.io/ginkgo/#generating-junit-xml-output) and a TeamCity reporter).
+    - [Adapt an existing matcher library (or write your own!)](http://onsi.github.io/ginkgo/#using-other-matcher-libraries) to work with Ginkgo
+
+## [Gomega](http://github.com/onsi/gomega): Ginkgo's Preferred Matcher Library
+
+Ginkgo is best paired with Gomega.  Learn more about Gomega [here](http://onsi.github.io/gomega/)
+
+## [Agouti](http://github.com/sclevine/agouti): A Golang Acceptance Testing Framework
+
+Agouti allows you run WebDriver integration tests.  Learn more about Agouti [here](http://agouti.org)
+
+## Set Me Up!
+
+You'll need Golang v1.3+ (Ubuntu users: you probably have Golang v1.0 -- you'll need to upgrade!)
+
+```bash
+
+go get github.com/onsi/ginkgo/ginkgo  # installs the ginkgo CLI
+go get github.com/onsi/gomega         # fetches the matcher library
+
+cd path/to/package/you/want/to/test
+
+ginkgo bootstrap # set up a new ginkgo suite
+ginkgo generate  # will create a sample test file.  edit this file and add your tests then...
+
+go test # to run your tests
+
+ginkgo  # also runs your tests
+
+```
+
+## I'm new to Go: What are my testing options?
+
+Of course, I heartily recommend [Ginkgo](https://github.com/onsi/ginkgo) and [Gomega](https://github.com/onsi/gomega).  Both packages are seeing heavy, daily, production use on a number of projects and boast a mature and comprehensive feature-set.
+
+With that said, it's great to know what your options are :)
+
+### What Golang gives you out of the box
+
+Testing is a first class citizen in Golang, however Go's built-in testing primitives are somewhat limited: The [testing](http://golang.org/pkg/testing) package provides basic XUnit style tests and no assertion library.
+
+### Matcher libraries for Golang's XUnit style tests
+
+A number of matcher libraries have been written to augment Go's built-in XUnit style tests.  Here are two that have gained traction:
+
+- [testify](https://github.com/stretchr/testify)
+- [gocheck](http://labix.org/gocheck)
+
+You can also use Ginkgo's matcher library [Gomega](https://github.com/onsi/gomega) in [XUnit style tests](http://onsi.github.io/gomega/#using-gomega-with-golangs-xunitstyle-tests)
+
+### BDD style testing frameworks
+
+There are a handful of BDD-style testing frameworks written for Golang.  Here are a few:
+
+- [Ginkgo](https://github.com/onsi/ginkgo) ;)
+- [GoConvey](https://github.com/smartystreets/goconvey) 
+- [Goblin](https://github.com/franela/goblin)
+- [Mao](https://github.com/azer/mao)
+- [Zen](https://github.com/pranavraja/zen)
+
+Finally, @shageman has [put together](https://github.com/shageman/gotestit) a comprehensive comparison of golang testing libraries.
+
+Go explore!
+
+## License
+
+Ginkgo is MIT-Licensed
diff --git a/vendor/github.com/onsi/ginkgo/config/config.go b/vendor/github.com/onsi/ginkgo/config/config.go
new file mode 100644
index 0000000..46ce16a
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/config/config.go
@@ -0,0 +1,170 @@
+/*
+Ginkgo accepts a number of configuration options.
+
+These are documented [here](http://onsi.github.io/ginkgo/#the_ginkgo_cli)
+
+You can also learn more via
+
+	ginkgo help
+
+or (I kid you not):
+
+	go test -asdf
+*/
+package config
+
+import (
+	"flag"
+	"time"
+
+	"fmt"
+)
+
+const VERSION = "1.2.0"
+
+type GinkgoConfigType struct {
+	RandomSeed        int64
+	RandomizeAllSpecs bool
+	FocusString       string
+	SkipString        string
+	SkipMeasurements  bool
+	FailOnPending     bool
+	FailFast          bool
+	EmitSpecProgress  bool
+	DryRun            bool
+
+	ParallelNode  int
+	ParallelTotal int
+	SyncHost      string
+	StreamHost    string
+}
+
+var GinkgoConfig = GinkgoConfigType{}
+
+type DefaultReporterConfigType struct {
+	NoColor           bool
+	SlowSpecThreshold float64
+	NoisyPendings     bool
+	Succinct          bool
+	Verbose           bool
+	FullTrace         bool
+}
+
+var DefaultReporterConfig = DefaultReporterConfigType{}
+
+func processPrefix(prefix string) string {
+	if prefix != "" {
+		prefix = prefix + "."
+	}
+	return prefix
+}
+
+func Flags(flagSet *flag.FlagSet, prefix string, includeParallelFlags bool) {
+	prefix = processPrefix(prefix)
+	flagSet.Int64Var(&(GinkgoConfig.RandomSeed), prefix+"seed", time.Now().Unix(), "The seed used to randomize the spec suite.")
+	flagSet.BoolVar(&(GinkgoConfig.RandomizeAllSpecs), prefix+"randomizeAllSpecs", false, "If set, ginkgo will randomize all specs together.  By default, ginkgo only randomizes the top level Describe/Context groups.")
+	flagSet.BoolVar(&(GinkgoConfig.SkipMeasurements), prefix+"skipMeasurements", false, "If set, ginkgo will skip any measurement specs.")
+	flagSet.BoolVar(&(GinkgoConfig.FailOnPending), prefix+"failOnPending", false, "If set, ginkgo will mark the test suite as failed if any specs are pending.")
+	flagSet.BoolVar(&(GinkgoConfig.FailFast), prefix+"failFast", false, "If set, ginkgo will stop running a test suite after a failure occurs.")
+	flagSet.BoolVar(&(GinkgoConfig.DryRun), prefix+"dryRun", false, "If set, ginkgo will walk the test hierarchy without actually running anything.  Best paired with -v.")
+	flagSet.StringVar(&(GinkgoConfig.FocusString), prefix+"focus", "", "If set, ginkgo will only run specs that match this regular expression.")
+	flagSet.StringVar(&(GinkgoConfig.SkipString), prefix+"skip", "", "If set, ginkgo will only run specs that do not match this regular expression.")
+	flagSet.BoolVar(&(GinkgoConfig.EmitSpecProgress), prefix+"progress", false, "If set, ginkgo will emit progress information as each spec runs to the GinkgoWriter.")
+
+	if includeParallelFlags {
+		flagSet.IntVar(&(GinkgoConfig.ParallelNode), prefix+"parallel.node", 1, "This worker node's (one-indexed) node number.  For running specs in parallel.")
+		flagSet.IntVar(&(GinkgoConfig.ParallelTotal), prefix+"parallel.total", 1, "The total number of worker nodes.  For running specs in parallel.")
+		flagSet.StringVar(&(GinkgoConfig.SyncHost), prefix+"parallel.synchost", "", "The address for the server that will synchronize the running nodes.")
+		flagSet.StringVar(&(GinkgoConfig.StreamHost), prefix+"parallel.streamhost", "", "The address for the server that the running nodes should stream data to.")
+	}
+
+	flagSet.BoolVar(&(DefaultReporterConfig.NoColor), prefix+"noColor", false, "If set, suppress color output in default reporter.")
+	flagSet.Float64Var(&(DefaultReporterConfig.SlowSpecThreshold), prefix+"slowSpecThreshold", 5.0, "(in seconds) Specs that take longer to run than this threshold are flagged as slow by the default reporter (default: 5 seconds).")
+	flagSet.BoolVar(&(DefaultReporterConfig.NoisyPendings), prefix+"noisyPendings", true, "If set, default reporter will shout about pending tests.")
+	flagSet.BoolVar(&(DefaultReporterConfig.Verbose), prefix+"v", false, "If set, default reporter print out all specs as they begin.")
+	flagSet.BoolVar(&(DefaultReporterConfig.Succinct), prefix+"succinct", false, "If set, default reporter prints out a very succinct report")
+	flagSet.BoolVar(&(DefaultReporterConfig.FullTrace), prefix+"trace", false, "If set, default reporter prints out the full stack trace when a failure occurs")
+}
+
+func BuildFlagArgs(prefix string, ginkgo GinkgoConfigType, reporter DefaultReporterConfigType) []string {
+	prefix = processPrefix(prefix)
+	result := make([]string, 0)
+
+	if ginkgo.RandomSeed > 0 {
+		result = append(result, fmt.Sprintf("--%sseed=%d", prefix, ginkgo.RandomSeed))
+	}
+
+	if ginkgo.RandomizeAllSpecs {
+		result = append(result, fmt.Sprintf("--%srandomizeAllSpecs", prefix))
+	}
+
+	if ginkgo.SkipMeasurements {
+		result = append(result, fmt.Sprintf("--%sskipMeasurements", prefix))
+	}
+
+	if ginkgo.FailOnPending {
+		result = append(result, fmt.Sprintf("--%sfailOnPending", prefix))
+	}
+
+	if ginkgo.FailFast {
+		result = append(result, fmt.Sprintf("--%sfailFast", prefix))
+	}
+
+	if ginkgo.DryRun {
+		result = append(result, fmt.Sprintf("--%sdryRun", prefix))
+	}
+
+	if ginkgo.FocusString != "" {
+		result = append(result, fmt.Sprintf("--%sfocus=%s", prefix, ginkgo.FocusString))
+	}
+
+	if ginkgo.SkipString != "" {
+		result = append(result, fmt.Sprintf("--%sskip=%s", prefix, ginkgo.SkipString))
+	}
+
+	if ginkgo.EmitSpecProgress {
+		result = append(result, fmt.Sprintf("--%sprogress", prefix))
+	}
+
+	if ginkgo.ParallelNode != 0 {
+		result = append(result, fmt.Sprintf("--%sparallel.node=%d", prefix, ginkgo.ParallelNode))
+	}
+
+	if ginkgo.ParallelTotal != 0 {
+		result = append(result, fmt.Sprintf("--%sparallel.total=%d", prefix, ginkgo.ParallelTotal))
+	}
+
+	if ginkgo.StreamHost != "" {
+		result = append(result, fmt.Sprintf("--%sparallel.streamhost=%s", prefix, ginkgo.StreamHost))
+	}
+
+	if ginkgo.SyncHost != "" {
+		result = append(result, fmt.Sprintf("--%sparallel.synchost=%s", prefix, ginkgo.SyncHost))
+	}
+
+	if reporter.NoColor {
+		result = append(result, fmt.Sprintf("--%snoColor", prefix))
+	}
+
+	if reporter.SlowSpecThreshold > 0 {
+		result = append(result, fmt.Sprintf("--%sslowSpecThreshold=%.5f", prefix, reporter.SlowSpecThreshold))
+	}
+
+	if !reporter.NoisyPendings {
+		result = append(result, fmt.Sprintf("--%snoisyPendings=false", prefix))
+	}
+
+	if reporter.Verbose {
+		result = append(result, fmt.Sprintf("--%sv", prefix))
+	}
+
+	if reporter.Succinct {
+		result = append(result, fmt.Sprintf("--%ssuccinct", prefix))
+	}
+
+	if reporter.FullTrace {
+		result = append(result, fmt.Sprintf("--%strace", prefix))
+	}
+
+	return result
+}
diff --git a/vendor/github.com/onsi/ginkgo/ginkgo_dsl.go b/vendor/github.com/onsi/ginkgo/ginkgo_dsl.go
new file mode 100644
index 0000000..36f6d8e
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/ginkgo_dsl.go
@@ -0,0 +1,536 @@
+/*
+Ginkgo is a BDD-style testing framework for Golang
+
+The godoc documentation describes Ginkgo's API.  More comprehensive documentation (with examples!) is available at http://onsi.github.io/ginkgo/
+
+Ginkgo's preferred matcher library is [Gomega](http://github.com/onsi/gomega)
+
+Ginkgo on Github: http://github.com/onsi/ginkgo
+
+Ginkgo is MIT-Licensed
+*/
+package ginkgo
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/internal/codelocation"
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/internal/remote"
+	"github.com/onsi/ginkgo/internal/suite"
+	"github.com/onsi/ginkgo/internal/testingtproxy"
+	"github.com/onsi/ginkgo/internal/writer"
+	"github.com/onsi/ginkgo/reporters"
+	"github.com/onsi/ginkgo/reporters/stenographer"
+	"github.com/onsi/ginkgo/types"
+)
+
+const GINKGO_VERSION = config.VERSION
+const GINKGO_PANIC = `
+Your test failed.
+Ginkgo panics to prevent subsequent assertions from running.
+Normally Ginkgo rescues this panic so you shouldn't see it.
+
+But, if you make an assertion in a goroutine, Ginkgo can't capture the panic.
+To circumvent this, you should call
+
+	defer GinkgoRecover()
+
+at the top of the goroutine that caused this panic.
+`
+const defaultTimeout = 1
+
+var globalSuite *suite.Suite
+var globalFailer *failer.Failer
+
+func init() {
+	config.Flags(flag.CommandLine, "ginkgo", true)
+	GinkgoWriter = writer.New(os.Stdout)
+	globalFailer = failer.New()
+	globalSuite = suite.New(globalFailer)
+}
+
+//GinkgoWriter implements an io.Writer
+//When running in verbose mode any writes to GinkgoWriter will be immediately printed
+//to stdout.  Otherwise, GinkgoWriter will buffer any writes produced during the current test and flush them to screen
+//only if the current test fails.
+var GinkgoWriter io.Writer
+
+//The interface by which Ginkgo receives *testing.T
+type GinkgoTestingT interface {
+	Fail()
+}
+
+//GinkgoParallelNode returns the parallel node number for the current ginkgo process
+//The node number is 1-indexed
+func GinkgoParallelNode() int {
+	return config.GinkgoConfig.ParallelNode
+}
+
+//Some matcher libraries or legacy codebases require a *testing.T
+//GinkgoT implements an interface analogous to *testing.T and can be used if
+//the library in question accepts *testing.T through an interface
+//
+// For example, with testify:
+// assert.Equal(GinkgoT(), 123, 123, "they should be equal")
+//
+// Or with gomock:
+// gomock.NewController(GinkgoT())
+//
+// GinkgoT() takes an optional offset argument that can be used to get the
+// correct line number associated with the failure.
+func GinkgoT(optionalOffset ...int) GinkgoTInterface {
+	offset := 3
+	if len(optionalOffset) > 0 {
+		offset = optionalOffset[0]
+	}
+	return testingtproxy.New(GinkgoWriter, Fail, offset)
+}
+
+//The interface returned by GinkgoT().  This covers most of the methods
+//in the testing package's T.
+type GinkgoTInterface interface {
+	Fail()
+	Error(args ...interface{})
+	Errorf(format string, args ...interface{})
+	FailNow()
+	Fatal(args ...interface{})
+	Fatalf(format string, args ...interface{})
+	Log(args ...interface{})
+	Logf(format string, args ...interface{})
+	Failed() bool
+	Parallel()
+	Skip(args ...interface{})
+	Skipf(format string, args ...interface{})
+	SkipNow()
+	Skipped() bool
+}
+
+//Custom Ginkgo test reporters must implement the Reporter interface.
+//
+//The custom reporter is passed in a SuiteSummary when the suite begins and ends,
+//and a SpecSummary just before a spec begins and just after a spec ends
+type Reporter reporters.Reporter
+
+//Asynchronous specs are given a channel of the Done type.  You must close or write to the channel
+//to tell Ginkgo that your async test is done.
+type Done chan<- interface{}
+
+//GinkgoTestDescription represents the information about the current running test returned by CurrentGinkgoTestDescription
+//	FullTestText: a concatenation of ComponentTexts and the TestText
+//	ComponentTexts: a list of all texts for the Describes & Contexts leading up to the current test
+//	TestText: the text in the actual It or Measure node
+//	IsMeasurement: true if the current test is a measurement
+//	FileName: the name of the file containing the current test
+//	LineNumber: the line number for the current test
+//	Failed: if the current test has failed, this will be true (useful in an AfterEach)
+type GinkgoTestDescription struct {
+	FullTestText   string
+	ComponentTexts []string
+	TestText       string
+
+	IsMeasurement bool
+
+	FileName   string
+	LineNumber int
+
+	Failed bool
+}
+
+//CurrentGinkgoTestDescripton returns information about the current running test.
+func CurrentGinkgoTestDescription() GinkgoTestDescription {
+	summary, ok := globalSuite.CurrentRunningSpecSummary()
+	if !ok {
+		return GinkgoTestDescription{}
+	}
+
+	subjectCodeLocation := summary.ComponentCodeLocations[len(summary.ComponentCodeLocations)-1]
+
+	return GinkgoTestDescription{
+		ComponentTexts: summary.ComponentTexts[1:],
+		FullTestText:   strings.Join(summary.ComponentTexts[1:], " "),
+		TestText:       summary.ComponentTexts[len(summary.ComponentTexts)-1],
+		IsMeasurement:  summary.IsMeasurement,
+		FileName:       subjectCodeLocation.FileName,
+		LineNumber:     subjectCodeLocation.LineNumber,
+		Failed:         summary.HasFailureState(),
+	}
+}
+
+//Measurement tests receive a Benchmarker.
+//
+//You use the Time() function to time how long the passed in body function takes to run
+//You use the RecordValue() function to track arbitrary numerical measurements.
+//The optional info argument is passed to the test reporter and can be used to
+// provide the measurement data to a custom reporter with context.
+//
+//See http://onsi.github.io/ginkgo/#benchmark_tests for more details
+type Benchmarker interface {
+	Time(name string, body func(), info ...interface{}) (elapsedTime time.Duration)
+	RecordValue(name string, value float64, info ...interface{})
+}
+
+//RunSpecs is the entry point for the Ginkgo test runner.
+//You must call this within a Golang testing TestX(t *testing.T) function.
+//
+//To bootstrap a test suite you can use the Ginkgo CLI:
+//
+//	ginkgo bootstrap
+func RunSpecs(t GinkgoTestingT, description string) bool {
+	specReporters := []Reporter{buildDefaultReporter()}
+	return RunSpecsWithCustomReporters(t, description, specReporters)
+}
+
+//To run your tests with Ginkgo's default reporter and your custom reporter(s), replace
+//RunSpecs() with this method.
+func RunSpecsWithDefaultAndCustomReporters(t GinkgoTestingT, description string, specReporters []Reporter) bool {
+	specReporters = append([]Reporter{buildDefaultReporter()}, specReporters...)
+	return RunSpecsWithCustomReporters(t, description, specReporters)
+}
+
+//To run your tests with your custom reporter(s) (and *not* Ginkgo's default reporter), replace
+//RunSpecs() with this method.  Note that parallel tests will not work correctly without the default reporter
+func RunSpecsWithCustomReporters(t GinkgoTestingT, description string, specReporters []Reporter) bool {
+	writer := GinkgoWriter.(*writer.Writer)
+	writer.SetStream(config.DefaultReporterConfig.Verbose)
+	reporters := make([]reporters.Reporter, len(specReporters))
+	for i, reporter := range specReporters {
+		reporters[i] = reporter
+	}
+	passed, hasFocusedTests := globalSuite.Run(t, description, reporters, writer, config.GinkgoConfig)
+	if passed && hasFocusedTests {
+		fmt.Println("PASS | FOCUSED")
+		os.Exit(types.GINKGO_FOCUS_EXIT_CODE)
+	}
+	return passed
+}
+
+func buildDefaultReporter() Reporter {
+	remoteReportingServer := config.GinkgoConfig.StreamHost
+	if remoteReportingServer == "" {
+		stenographer := stenographer.New(!config.DefaultReporterConfig.NoColor)
+		return reporters.NewDefaultReporter(config.DefaultReporterConfig, stenographer)
+	} else {
+		return remote.NewForwardingReporter(remoteReportingServer, &http.Client{}, remote.NewOutputInterceptor())
+	}
+}
+
+//Skip notifies Ginkgo that the current spec should be skipped.
+func Skip(message string, callerSkip ...int) {
+	skip := 0
+	if len(callerSkip) > 0 {
+		skip = callerSkip[0]
+	}
+
+	globalFailer.Skip(message, codelocation.New(skip+1))
+	panic(GINKGO_PANIC)
+}
+
+//Fail notifies Ginkgo that the current spec has failed. (Gomega will call Fail for you automatically when an assertion fails.)
+func Fail(message string, callerSkip ...int) {
+	skip := 0
+	if len(callerSkip) > 0 {
+		skip = callerSkip[0]
+	}
+
+	globalFailer.Fail(message, codelocation.New(skip+1))
+	panic(GINKGO_PANIC)
+}
+
+//GinkgoRecover should be deferred at the top of any spawned goroutine that (may) call `Fail`
+//Since Gomega assertions call fail, you should throw a `defer GinkgoRecover()` at the top of any goroutine that
+//calls out to Gomega
+//
+//Here's why: Ginkgo's `Fail` method records the failure and then panics to prevent
+//further assertions from running.  This panic must be recovered.  Ginkgo does this for you
+//if the panic originates in a Ginkgo node (an It, BeforeEach, etc...)
+//
+//Unfortunately, if a panic originates on a goroutine *launched* from one of these nodes there's no
+//way for Ginkgo to rescue the panic.  To do this, you must remember to `defer GinkgoRecover()` at the top of such a goroutine.
+func GinkgoRecover() {
+	e := recover()
+	if e != nil {
+		globalFailer.Panic(codelocation.New(1), e)
+	}
+}
+
+//Describe blocks allow you to organize your specs.  A Describe block can contain any number of
+//BeforeEach, AfterEach, JustBeforeEach, It, and Measurement blocks.
+//
+//In addition you can nest Describe and Context blocks.  Describe and Context blocks are functionally
+//equivalent.  The difference is purely semantic -- you typical Describe the behavior of an object
+//or method and, within that Describe, outline a number of Contexts.
+func Describe(text string, body func()) bool {
+	globalSuite.PushContainerNode(text, body, types.FlagTypeNone, codelocation.New(1))
+	return true
+}
+
+//You can focus the tests within a describe block using FDescribe
+func FDescribe(text string, body func()) bool {
+	globalSuite.PushContainerNode(text, body, types.FlagTypeFocused, codelocation.New(1))
+	return true
+}
+
+//You can mark the tests within a describe block as pending using PDescribe
+func PDescribe(text string, body func()) bool {
+	globalSuite.PushContainerNode(text, body, types.FlagTypePending, codelocation.New(1))
+	return true
+}
+
+//You can mark the tests within a describe block as pending using XDescribe
+func XDescribe(text string, body func()) bool {
+	globalSuite.PushContainerNode(text, body, types.FlagTypePending, codelocation.New(1))
+	return true
+}
+
+//Context blocks allow you to organize your specs.  A Context block can contain any number of
+//BeforeEach, AfterEach, JustBeforeEach, It, and Measurement blocks.
+//
+//In addition you can nest Describe and Context blocks.  Describe and Context blocks are functionally
+//equivalent.  The difference is purely semantic -- you typical Describe the behavior of an object
+//or method and, within that Describe, outline a number of Contexts.
+func Context(text string, body func()) bool {
+	globalSuite.PushContainerNode(text, body, types.FlagTypeNone, codelocation.New(1))
+	return true
+}
+
+//You can focus the tests within a describe block using FContext
+func FContext(text string, body func()) bool {
+	globalSuite.PushContainerNode(text, body, types.FlagTypeFocused, codelocation.New(1))
+	return true
+}
+
+//You can mark the tests within a describe block as pending using PContext
+func PContext(text string, body func()) bool {
+	globalSuite.PushContainerNode(text, body, types.FlagTypePending, codelocation.New(1))
+	return true
+}
+
+//You can mark the tests within a describe block as pending using XContext
+func XContext(text string, body func()) bool {
+	globalSuite.PushContainerNode(text, body, types.FlagTypePending, codelocation.New(1))
+	return true
+}
+
+//It blocks contain your test code and assertions.  You cannot nest any other Ginkgo blocks
+//within an It block.
+//
+//Ginkgo will normally run It blocks synchronously.  To perform asynchronous tests, pass a
+//function that accepts a Done channel.  When you do this, you can also provide an optional timeout.
+func It(text string, body interface{}, timeout ...float64) bool {
+	globalSuite.PushItNode(text, body, types.FlagTypeNone, codelocation.New(1), parseTimeout(timeout...))
+	return true
+}
+
+//You can focus individual Its using FIt
+func FIt(text string, body interface{}, timeout ...float64) bool {
+	globalSuite.PushItNode(text, body, types.FlagTypeFocused, codelocation.New(1), parseTimeout(timeout...))
+	return true
+}
+
+//You can mark Its as pending using PIt
+func PIt(text string, _ ...interface{}) bool {
+	globalSuite.PushItNode(text, func() {}, types.FlagTypePending, codelocation.New(1), 0)
+	return true
+}
+
+//You can mark Its as pending using XIt
+func XIt(text string, _ ...interface{}) bool {
+	globalSuite.PushItNode(text, func() {}, types.FlagTypePending, codelocation.New(1), 0)
+	return true
+}
+
+//By allows you to better document large Its.
+//
+//Generally you should try to keep your Its short and to the point.  This is not always possible, however,
+//especially in the context of integration tests that capture a particular workflow.
+//
+//By allows you to document such flows.  By must be called within a runnable node (It, BeforeEach, Measure, etc...)
+//By will simply log the passed in text to the GinkgoWriter.  If By is handed a function it will immediately run the function.
+func By(text string, callbacks ...func()) {
+	preamble := "\x1b[1mSTEP\x1b[0m"
+	if config.DefaultReporterConfig.NoColor {
+		preamble = "STEP"
+	}
+	fmt.Fprintln(GinkgoWriter, preamble+": "+text)
+	if len(callbacks) == 1 {
+		callbacks[0]()
+	}
+	if len(callbacks) > 1 {
+		panic("just one callback per By, please")
+	}
+}
+
+//Measure blocks run the passed in body function repeatedly (determined by the samples argument)
+//and accumulate metrics provided to the Benchmarker by the body function.
+//
+//The body function must have the signature:
+//	func(b Benchmarker)
+func Measure(text string, body interface{}, samples int) bool {
+	globalSuite.PushMeasureNode(text, body, types.FlagTypeNone, codelocation.New(1), samples)
+	return true
+}
+
+//You can focus individual Measures using FMeasure
+func FMeasure(text string, body interface{}, samples int) bool {
+	globalSuite.PushMeasureNode(text, body, types.FlagTypeFocused, codelocation.New(1), samples)
+	return true
+}
+
+//You can mark Maeasurements as pending using PMeasure
+func PMeasure(text string, _ ...interface{}) bool {
+	globalSuite.PushMeasureNode(text, func(b Benchmarker) {}, types.FlagTypePending, codelocation.New(1), 0)
+	return true
+}
+
+//You can mark Maeasurements as pending using XMeasure
+func XMeasure(text string, _ ...interface{}) bool {
+	globalSuite.PushMeasureNode(text, func(b Benchmarker) {}, types.FlagTypePending, codelocation.New(1), 0)
+	return true
+}
+
+//BeforeSuite blocks are run just once before any specs are run.  When running in parallel, each
+//parallel node process will call BeforeSuite.
+//
+//BeforeSuite blocks can be made asynchronous by providing a body function that accepts a Done channel
+//
+//You may only register *one* BeforeSuite handler per test suite.  You typically do so in your bootstrap file at the top level.
+func BeforeSuite(body interface{}, timeout ...float64) bool {
+	globalSuite.SetBeforeSuiteNode(body, codelocation.New(1), parseTimeout(timeout...))
+	return true
+}
+
+//AfterSuite blocks are *always* run after all the specs regardless of whether specs have passed or failed.
+//Moreover, if Ginkgo receives an interrupt signal (^C) it will attempt to run the AfterSuite before exiting.
+//
+//When running in parallel, each parallel node process will call AfterSuite.
+//
+//AfterSuite blocks can be made asynchronous by providing a body function that accepts a Done channel
+//
+//You may only register *one* AfterSuite handler per test suite.  You typically do so in your bootstrap file at the top level.
+func AfterSuite(body interface{}, timeout ...float64) bool {
+	globalSuite.SetAfterSuiteNode(body, codelocation.New(1), parseTimeout(timeout...))
+	return true
+}
+
+//SynchronizedBeforeSuite blocks are primarily meant to solve the problem of setting up singleton external resources shared across
+//nodes when running tests in parallel.  For example, say you have a shared database that you can only start one instance of that
+//must be used in your tests.  When running in parallel, only one node should set up the database and all other nodes should wait
+//until that node is done before running.
+//
+//SynchronizedBeforeSuite accomplishes this by taking *two* function arguments.  The first is only run on parallel node #1.  The second is
+//run on all nodes, but *only* after the first function completes succesfully.  Ginkgo also makes it possible to send data from the first function (on Node 1)
+//to the second function (on all the other nodes).
+//
+//The functions have the following signatures.  The first function (which only runs on node 1) has the signature:
+//
+//	func() []byte
+//
+//or, to run asynchronously:
+//
+//	func(done Done) []byte
+//
+//The byte array returned by the first function is then passed to the second function, which has the signature:
+//
+//	func(data []byte)
+//
+//or, to run asynchronously:
+//
+//	func(data []byte, done Done)
+//
+//Here's a simple pseudo-code example that starts a shared database on Node 1 and shares the database's address with the other nodes:
+//
+//	var dbClient db.Client
+//	var dbRunner db.Runner
+//
+//	var _ = SynchronizedBeforeSuite(func() []byte {
+//		dbRunner = db.NewRunner()
+//		err := dbRunner.Start()
+//		Ω(err).ShouldNot(HaveOccurred())
+//		return []byte(dbRunner.URL)
+//	}, func(data []byte) {
+//		dbClient = db.NewClient()
+//		err := dbClient.Connect(string(data))
+//		Ω(err).ShouldNot(HaveOccurred())
+//	})
+func SynchronizedBeforeSuite(node1Body interface{}, allNodesBody interface{}, timeout ...float64) bool {
+	globalSuite.SetSynchronizedBeforeSuiteNode(
+		node1Body,
+		allNodesBody,
+		codelocation.New(1),
+		parseTimeout(timeout...),
+	)
+	return true
+}
+
+//SynchronizedAfterSuite blocks complement the SynchronizedBeforeSuite blocks in solving the problem of setting up
+//external singleton resources shared across nodes when running tests in parallel.
+//
+//SynchronizedAfterSuite accomplishes this by taking *two* function arguments.  The first runs on all nodes.  The second runs only on parallel node #1
+//and *only* after all other nodes have finished and exited.  This ensures that node 1, and any resources it is running, remain alive until
+//all other nodes are finished.
+//
+//Both functions have the same signature: either func() or func(done Done) to run asynchronously.
+//
+//Here's a pseudo-code example that complements that given in SynchronizedBeforeSuite.  Here, SynchronizedAfterSuite is used to tear down the shared database
+//only after all nodes have finished:
+//
+//	var _ = SynchronizedAfterSuite(func() {
+//		dbClient.Cleanup()
+//	}, func() {
+//		dbRunner.Stop()
+//	})
+func SynchronizedAfterSuite(allNodesBody interface{}, node1Body interface{}, timeout ...float64) bool {
+	globalSuite.SetSynchronizedAfterSuiteNode(
+		allNodesBody,
+		node1Body,
+		codelocation.New(1),
+		parseTimeout(timeout...),
+	)
+	return true
+}
+
+//BeforeEach blocks are run before It blocks.  When multiple BeforeEach blocks are defined in nested
+//Describe and Context blocks the outermost BeforeEach blocks are run first.
+//
+//Like It blocks, BeforeEach blocks can be made asynchronous by providing a body function that accepts
+//a Done channel
+func BeforeEach(body interface{}, timeout ...float64) bool {
+	globalSuite.PushBeforeEachNode(body, codelocation.New(1), parseTimeout(timeout...))
+	return true
+}
+
+//JustBeforeEach blocks are run before It blocks but *after* all BeforeEach blocks.  For more details,
+//read the [documentation](http://onsi.github.io/ginkgo/#separating_creation_and_configuration_)
+//
+//Like It blocks, BeforeEach blocks can be made asynchronous by providing a body function that accepts
+//a Done channel
+func JustBeforeEach(body interface{}, timeout ...float64) bool {
+	globalSuite.PushJustBeforeEachNode(body, codelocation.New(1), parseTimeout(timeout...))
+	return true
+}
+
+//AfterEach blocks are run after It blocks.   When multiple AfterEach blocks are defined in nested
+//Describe and Context blocks the innermost AfterEach blocks are run first.
+//
+//Like It blocks, AfterEach blocks can be made asynchronous by providing a body function that accepts
+//a Done channel
+func AfterEach(body interface{}, timeout ...float64) bool {
+	globalSuite.PushAfterEachNode(body, codelocation.New(1), parseTimeout(timeout...))
+	return true
+}
+
+func parseTimeout(timeout ...float64) time.Duration {
+	if len(timeout) == 0 {
+		return time.Duration(defaultTimeout * int64(time.Second))
+	} else {
+		return time.Duration(timeout[0] * float64(time.Second))
+	}
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/codelocation/code_location.go b/vendor/github.com/onsi/ginkgo/internal/codelocation/code_location.go
new file mode 100644
index 0000000..fa2f0bf
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/codelocation/code_location.go
@@ -0,0 +1,32 @@
+package codelocation
+
+import (
+	"regexp"
+	"runtime"
+	"runtime/debug"
+	"strings"
+
+	"github.com/onsi/ginkgo/types"
+)
+
+func New(skip int) types.CodeLocation {
+	_, file, line, _ := runtime.Caller(skip + 1)
+	stackTrace := PruneStack(string(debug.Stack()), skip)
+	return types.CodeLocation{FileName: file, LineNumber: line, FullStackTrace: stackTrace}
+}
+
+func PruneStack(fullStackTrace string, skip int) string {
+	stack := strings.Split(fullStackTrace, "\n")
+	if len(stack) > 2*(skip+1) {
+		stack = stack[2*(skip+1):]
+	}
+	prunedStack := []string{}
+	re := regexp.MustCompile(`\/ginkgo\/|\/pkg\/testing\/|\/pkg\/runtime\/`)
+	for i := 0; i < len(stack)/2; i++ {
+		if !re.Match([]byte(stack[i*2])) {
+			prunedStack = append(prunedStack, stack[i*2])
+			prunedStack = append(prunedStack, stack[i*2+1])
+		}
+	}
+	return strings.Join(prunedStack, "\n")
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/containernode/container_node.go b/vendor/github.com/onsi/ginkgo/internal/containernode/container_node.go
new file mode 100644
index 0000000..0737746
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/containernode/container_node.go
@@ -0,0 +1,151 @@
+package containernode
+
+import (
+	"math/rand"
+	"sort"
+
+	"github.com/onsi/ginkgo/internal/leafnodes"
+	"github.com/onsi/ginkgo/types"
+)
+
+type subjectOrContainerNode struct {
+	containerNode *ContainerNode
+	subjectNode   leafnodes.SubjectNode
+}
+
+func (n subjectOrContainerNode) text() string {
+	if n.containerNode != nil {
+		return n.containerNode.Text()
+	} else {
+		return n.subjectNode.Text()
+	}
+}
+
+type CollatedNodes struct {
+	Containers []*ContainerNode
+	Subject    leafnodes.SubjectNode
+}
+
+type ContainerNode struct {
+	text         string
+	flag         types.FlagType
+	codeLocation types.CodeLocation
+
+	setupNodes               []leafnodes.BasicNode
+	subjectAndContainerNodes []subjectOrContainerNode
+}
+
+func New(text string, flag types.FlagType, codeLocation types.CodeLocation) *ContainerNode {
+	return &ContainerNode{
+		text:         text,
+		flag:         flag,
+		codeLocation: codeLocation,
+	}
+}
+
+func (container *ContainerNode) Shuffle(r *rand.Rand) {
+	sort.Sort(container)
+	permutation := r.Perm(len(container.subjectAndContainerNodes))
+	shuffledNodes := make([]subjectOrContainerNode, len(container.subjectAndContainerNodes))
+	for i, j := range permutation {
+		shuffledNodes[i] = container.subjectAndContainerNodes[j]
+	}
+	container.subjectAndContainerNodes = shuffledNodes
+}
+
+func (node *ContainerNode) BackPropagateProgrammaticFocus() bool {
+	if node.flag == types.FlagTypePending {
+		return false
+	}
+
+	shouldUnfocus := false
+	for _, subjectOrContainerNode := range node.subjectAndContainerNodes {
+		if subjectOrContainerNode.containerNode != nil {
+			shouldUnfocus = subjectOrContainerNode.containerNode.BackPropagateProgrammaticFocus() || shouldUnfocus
+		} else {
+			shouldUnfocus = (subjectOrContainerNode.subjectNode.Flag() == types.FlagTypeFocused) || shouldUnfocus
+		}
+	}
+
+	if shouldUnfocus {
+		if node.flag == types.FlagTypeFocused {
+			node.flag = types.FlagTypeNone
+		}
+		return true
+	}
+
+	return node.flag == types.FlagTypeFocused
+}
+
+func (node *ContainerNode) Collate() []CollatedNodes {
+	return node.collate([]*ContainerNode{})
+}
+
+func (node *ContainerNode) collate(enclosingContainers []*ContainerNode) []CollatedNodes {
+	collated := make([]CollatedNodes, 0)
+
+	containers := make([]*ContainerNode, len(enclosingContainers))
+	copy(containers, enclosingContainers)
+	containers = append(containers, node)
+
+	for _, subjectOrContainer := range node.subjectAndContainerNodes {
+		if subjectOrContainer.containerNode != nil {
+			collated = append(collated, subjectOrContainer.containerNode.collate(containers)...)
+		} else {
+			collated = append(collated, CollatedNodes{
+				Containers: containers,
+				Subject:    subjectOrContainer.subjectNode,
+			})
+		}
+	}
+
+	return collated
+}
+
+func (node *ContainerNode) PushContainerNode(container *ContainerNode) {
+	node.subjectAndContainerNodes = append(node.subjectAndContainerNodes, subjectOrContainerNode{containerNode: container})
+}
+
+func (node *ContainerNode) PushSubjectNode(subject leafnodes.SubjectNode) {
+	node.subjectAndContainerNodes = append(node.subjectAndContainerNodes, subjectOrContainerNode{subjectNode: subject})
+}
+
+func (node *ContainerNode) PushSetupNode(setupNode leafnodes.BasicNode) {
+	node.setupNodes = append(node.setupNodes, setupNode)
+}
+
+func (node *ContainerNode) SetupNodesOfType(nodeType types.SpecComponentType) []leafnodes.BasicNode {
+	nodes := []leafnodes.BasicNode{}
+	for _, setupNode := range node.setupNodes {
+		if setupNode.Type() == nodeType {
+			nodes = append(nodes, setupNode)
+		}
+	}
+	return nodes
+}
+
+func (node *ContainerNode) Text() string {
+	return node.text
+}
+
+func (node *ContainerNode) CodeLocation() types.CodeLocation {
+	return node.codeLocation
+}
+
+func (node *ContainerNode) Flag() types.FlagType {
+	return node.flag
+}
+
+//sort.Interface
+
+func (node *ContainerNode) Len() int {
+	return len(node.subjectAndContainerNodes)
+}
+
+func (node *ContainerNode) Less(i, j int) bool {
+	return node.subjectAndContainerNodes[i].text() < node.subjectAndContainerNodes[j].text()
+}
+
+func (node *ContainerNode) Swap(i, j int) {
+	node.subjectAndContainerNodes[i], node.subjectAndContainerNodes[j] = node.subjectAndContainerNodes[j], node.subjectAndContainerNodes[i]
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/failer/failer.go b/vendor/github.com/onsi/ginkgo/internal/failer/failer.go
new file mode 100644
index 0000000..678ea25
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/failer/failer.go
@@ -0,0 +1,92 @@
+package failer
+
+import (
+	"fmt"
+	"sync"
+
+	"github.com/onsi/ginkgo/types"
+)
+
+type Failer struct {
+	lock    *sync.Mutex
+	failure types.SpecFailure
+	state   types.SpecState
+}
+
+func New() *Failer {
+	return &Failer{
+		lock:  &sync.Mutex{},
+		state: types.SpecStatePassed,
+	}
+}
+
+func (f *Failer) Panic(location types.CodeLocation, forwardedPanic interface{}) {
+	f.lock.Lock()
+	defer f.lock.Unlock()
+
+	if f.state == types.SpecStatePassed {
+		f.state = types.SpecStatePanicked
+		f.failure = types.SpecFailure{
+			Message:        "Test Panicked",
+			Location:       location,
+			ForwardedPanic: fmt.Sprintf("%v", forwardedPanic),
+		}
+	}
+}
+
+func (f *Failer) Timeout(location types.CodeLocation) {
+	f.lock.Lock()
+	defer f.lock.Unlock()
+
+	if f.state == types.SpecStatePassed {
+		f.state = types.SpecStateTimedOut
+		f.failure = types.SpecFailure{
+			Message:  "Timed out",
+			Location: location,
+		}
+	}
+}
+
+func (f *Failer) Fail(message string, location types.CodeLocation) {
+	f.lock.Lock()
+	defer f.lock.Unlock()
+
+	if f.state == types.SpecStatePassed {
+		f.state = types.SpecStateFailed
+		f.failure = types.SpecFailure{
+			Message:  message,
+			Location: location,
+		}
+	}
+}
+
+func (f *Failer) Drain(componentType types.SpecComponentType, componentIndex int, componentCodeLocation types.CodeLocation) (types.SpecFailure, types.SpecState) {
+	f.lock.Lock()
+	defer f.lock.Unlock()
+
+	failure := f.failure
+	outcome := f.state
+	if outcome != types.SpecStatePassed {
+		failure.ComponentType = componentType
+		failure.ComponentIndex = componentIndex
+		failure.ComponentCodeLocation = componentCodeLocation
+	}
+
+	f.state = types.SpecStatePassed
+	f.failure = types.SpecFailure{}
+
+	return failure, outcome
+}
+
+func (f *Failer) Skip(message string, location types.CodeLocation) {
+	f.lock.Lock()
+	defer f.lock.Unlock()
+
+	if f.state == types.SpecStatePassed {
+		f.state = types.SpecStateSkipped
+		f.failure = types.SpecFailure{
+			Message:  message,
+			Location: location,
+		}
+	}
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/benchmarker.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/benchmarker.go
new file mode 100644
index 0000000..bc0dd1a
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/benchmarker.go
@@ -0,0 +1,95 @@
+package leafnodes
+
+import (
+	"math"
+	"time"
+
+	"sync"
+
+	"github.com/onsi/ginkgo/types"
+)
+
+type benchmarker struct {
+	mu           sync.Mutex
+	measurements map[string]*types.SpecMeasurement
+	orderCounter int
+}
+
+func newBenchmarker() *benchmarker {
+	return &benchmarker{
+		measurements: make(map[string]*types.SpecMeasurement, 0),
+	}
+}
+
+func (b *benchmarker) Time(name string, body func(), info ...interface{}) (elapsedTime time.Duration) {
+	t := time.Now()
+	body()
+	elapsedTime = time.Since(t)
+
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	measurement := b.getMeasurement(name, "Fastest Time", "Slowest Time", "Average Time", "s", info...)
+	measurement.Results = append(measurement.Results, elapsedTime.Seconds())
+
+	return
+}
+
+func (b *benchmarker) RecordValue(name string, value float64, info ...interface{}) {
+	measurement := b.getMeasurement(name, "Smallest", " Largest", " Average", "", info...)
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	measurement.Results = append(measurement.Results, value)
+}
+
+func (b *benchmarker) getMeasurement(name string, smallestLabel string, largestLabel string, averageLabel string, units string, info ...interface{}) *types.SpecMeasurement {
+	measurement, ok := b.measurements[name]
+	if !ok {
+		var computedInfo interface{}
+		computedInfo = nil
+		if len(info) > 0 {
+			computedInfo = info[0]
+		}
+		measurement = &types.SpecMeasurement{
+			Name:          name,
+			Info:          computedInfo,
+			Order:         b.orderCounter,
+			SmallestLabel: smallestLabel,
+			LargestLabel:  largestLabel,
+			AverageLabel:  averageLabel,
+			Units:         units,
+			Results:       make([]float64, 0),
+		}
+		b.measurements[name] = measurement
+		b.orderCounter++
+	}
+
+	return measurement
+}
+
+func (b *benchmarker) measurementsReport() map[string]*types.SpecMeasurement {
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	for _, measurement := range b.measurements {
+		measurement.Smallest = math.MaxFloat64
+		measurement.Largest = -math.MaxFloat64
+		sum := float64(0)
+		sumOfSquares := float64(0)
+
+		for _, result := range measurement.Results {
+			if result > measurement.Largest {
+				measurement.Largest = result
+			}
+			if result < measurement.Smallest {
+				measurement.Smallest = result
+			}
+			sum += result
+			sumOfSquares += result * result
+		}
+
+		n := float64(len(measurement.Results))
+		measurement.Average = sum / n
+		measurement.StdDeviation = math.Sqrt(sumOfSquares/n - (sum/n)*(sum/n))
+	}
+
+	return b.measurements
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/interfaces.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/interfaces.go
new file mode 100644
index 0000000..8c3902d
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/interfaces.go
@@ -0,0 +1,19 @@
+package leafnodes
+
+import (
+	"github.com/onsi/ginkgo/types"
+)
+
+type BasicNode interface {
+	Type() types.SpecComponentType
+	Run() (types.SpecState, types.SpecFailure)
+	CodeLocation() types.CodeLocation
+}
+
+type SubjectNode interface {
+	BasicNode
+
+	Text() string
+	Flag() types.FlagType
+	Samples() int
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/it_node.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/it_node.go
new file mode 100644
index 0000000..c76fe3a
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/it_node.go
@@ -0,0 +1,46 @@
+package leafnodes
+
+import (
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/types"
+	"time"
+)
+
+type ItNode struct {
+	runner *runner
+
+	flag types.FlagType
+	text string
+}
+
+func NewItNode(text string, body interface{}, flag types.FlagType, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer, componentIndex int) *ItNode {
+	return &ItNode{
+		runner: newRunner(body, codeLocation, timeout, failer, types.SpecComponentTypeIt, componentIndex),
+		flag:   flag,
+		text:   text,
+	}
+}
+
+func (node *ItNode) Run() (outcome types.SpecState, failure types.SpecFailure) {
+	return node.runner.run()
+}
+
+func (node *ItNode) Type() types.SpecComponentType {
+	return types.SpecComponentTypeIt
+}
+
+func (node *ItNode) Text() string {
+	return node.text
+}
+
+func (node *ItNode) Flag() types.FlagType {
+	return node.flag
+}
+
+func (node *ItNode) CodeLocation() types.CodeLocation {
+	return node.runner.codeLocation
+}
+
+func (node *ItNode) Samples() int {
+	return 1
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/measure_node.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/measure_node.go
new file mode 100644
index 0000000..efc3348
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/measure_node.go
@@ -0,0 +1,61 @@
+package leafnodes
+
+import (
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/types"
+	"reflect"
+)
+
+type MeasureNode struct {
+	runner *runner
+
+	text        string
+	flag        types.FlagType
+	samples     int
+	benchmarker *benchmarker
+}
+
+func NewMeasureNode(text string, body interface{}, flag types.FlagType, codeLocation types.CodeLocation, samples int, failer *failer.Failer, componentIndex int) *MeasureNode {
+	benchmarker := newBenchmarker()
+
+	wrappedBody := func() {
+		reflect.ValueOf(body).Call([]reflect.Value{reflect.ValueOf(benchmarker)})
+	}
+
+	return &MeasureNode{
+		runner: newRunner(wrappedBody, codeLocation, 0, failer, types.SpecComponentTypeMeasure, componentIndex),
+
+		text:        text,
+		flag:        flag,
+		samples:     samples,
+		benchmarker: benchmarker,
+	}
+}
+
+func (node *MeasureNode) Run() (outcome types.SpecState, failure types.SpecFailure) {
+	return node.runner.run()
+}
+
+func (node *MeasureNode) MeasurementsReport() map[string]*types.SpecMeasurement {
+	return node.benchmarker.measurementsReport()
+}
+
+func (node *MeasureNode) Type() types.SpecComponentType {
+	return types.SpecComponentTypeMeasure
+}
+
+func (node *MeasureNode) Text() string {
+	return node.text
+}
+
+func (node *MeasureNode) Flag() types.FlagType {
+	return node.flag
+}
+
+func (node *MeasureNode) CodeLocation() types.CodeLocation {
+	return node.runner.codeLocation
+}
+
+func (node *MeasureNode) Samples() int {
+	return node.samples
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/runner.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/runner.go
new file mode 100644
index 0000000..003f851
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/runner.go
@@ -0,0 +1,113 @@
+package leafnodes
+
+import (
+	"fmt"
+	"github.com/onsi/ginkgo/internal/codelocation"
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/types"
+	"reflect"
+	"time"
+)
+
+type runner struct {
+	isAsync          bool
+	asyncFunc        func(chan<- interface{})
+	syncFunc         func()
+	codeLocation     types.CodeLocation
+	timeoutThreshold time.Duration
+	nodeType         types.SpecComponentType
+	componentIndex   int
+	failer           *failer.Failer
+}
+
+func newRunner(body interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer, nodeType types.SpecComponentType, componentIndex int) *runner {
+	bodyType := reflect.TypeOf(body)
+	if bodyType.Kind() != reflect.Func {
+		panic(fmt.Sprintf("Expected a function but got something else at %v", codeLocation))
+	}
+
+	runner := &runner{
+		codeLocation:     codeLocation,
+		timeoutThreshold: timeout,
+		failer:           failer,
+		nodeType:         nodeType,
+		componentIndex:   componentIndex,
+	}
+
+	switch bodyType.NumIn() {
+	case 0:
+		runner.syncFunc = body.(func())
+		return runner
+	case 1:
+		if !(bodyType.In(0).Kind() == reflect.Chan && bodyType.In(0).Elem().Kind() == reflect.Interface) {
+			panic(fmt.Sprintf("Must pass a Done channel to function at %v", codeLocation))
+		}
+
+		wrappedBody := func(done chan<- interface{}) {
+			bodyValue := reflect.ValueOf(body)
+			bodyValue.Call([]reflect.Value{reflect.ValueOf(done)})
+		}
+
+		runner.isAsync = true
+		runner.asyncFunc = wrappedBody
+		return runner
+	}
+
+	panic(fmt.Sprintf("Too many arguments to function at %v", codeLocation))
+}
+
+func (r *runner) run() (outcome types.SpecState, failure types.SpecFailure) {
+	if r.isAsync {
+		return r.runAsync()
+	} else {
+		return r.runSync()
+	}
+}
+
+func (r *runner) runAsync() (outcome types.SpecState, failure types.SpecFailure) {
+	done := make(chan interface{}, 1)
+
+	go func() {
+                finished := false
+
+		defer func() {
+			if e := recover(); e != nil || !finished {
+				r.failer.Panic(codelocation.New(2), e)
+				select {
+				case <-done:
+					break
+				default:
+					close(done)
+				}
+			}
+		}()
+
+		r.asyncFunc(done)
+                finished = true
+	}()
+
+	select {
+	case <-done:
+	case <-time.After(r.timeoutThreshold):
+		r.failer.Timeout(r.codeLocation)
+	}
+
+	failure, outcome = r.failer.Drain(r.nodeType, r.componentIndex, r.codeLocation)
+	return
+}
+func (r *runner) runSync() (outcome types.SpecState, failure types.SpecFailure) {
+        finished := false
+
+	defer func() {
+		if e := recover(); e != nil || !finished {
+			r.failer.Panic(codelocation.New(2), e)
+		}
+
+		failure, outcome = r.failer.Drain(r.nodeType, r.componentIndex, r.codeLocation)
+	}()
+
+	r.syncFunc()
+        finished = true
+
+	return
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/setup_nodes.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/setup_nodes.go
new file mode 100644
index 0000000..6b725a6
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/setup_nodes.go
@@ -0,0 +1,41 @@
+package leafnodes
+
+import (
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/types"
+	"time"
+)
+
+type SetupNode struct {
+	runner *runner
+}
+
+func (node *SetupNode) Run() (outcome types.SpecState, failure types.SpecFailure) {
+	return node.runner.run()
+}
+
+func (node *SetupNode) Type() types.SpecComponentType {
+	return node.runner.nodeType
+}
+
+func (node *SetupNode) CodeLocation() types.CodeLocation {
+	return node.runner.codeLocation
+}
+
+func NewBeforeEachNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer, componentIndex int) *SetupNode {
+	return &SetupNode{
+		runner: newRunner(body, codeLocation, timeout, failer, types.SpecComponentTypeBeforeEach, componentIndex),
+	}
+}
+
+func NewAfterEachNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer, componentIndex int) *SetupNode {
+	return &SetupNode{
+		runner: newRunner(body, codeLocation, timeout, failer, types.SpecComponentTypeAfterEach, componentIndex),
+	}
+}
+
+func NewJustBeforeEachNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer, componentIndex int) *SetupNode {
+	return &SetupNode{
+		runner: newRunner(body, codeLocation, timeout, failer, types.SpecComponentTypeJustBeforeEach, componentIndex),
+	}
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/suite_nodes.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/suite_nodes.go
new file mode 100644
index 0000000..2ccc7dc
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/suite_nodes.go
@@ -0,0 +1,54 @@
+package leafnodes
+
+import (
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/types"
+	"time"
+)
+
+type SuiteNode interface {
+	Run(parallelNode int, parallelTotal int, syncHost string) bool
+	Passed() bool
+	Summary() *types.SetupSummary
+}
+
+type simpleSuiteNode struct {
+	runner  *runner
+	outcome types.SpecState
+	failure types.SpecFailure
+	runTime time.Duration
+}
+
+func (node *simpleSuiteNode) Run(parallelNode int, parallelTotal int, syncHost string) bool {
+	t := time.Now()
+	node.outcome, node.failure = node.runner.run()
+	node.runTime = time.Since(t)
+
+	return node.outcome == types.SpecStatePassed
+}
+
+func (node *simpleSuiteNode) Passed() bool {
+	return node.outcome == types.SpecStatePassed
+}
+
+func (node *simpleSuiteNode) Summary() *types.SetupSummary {
+	return &types.SetupSummary{
+		ComponentType: node.runner.nodeType,
+		CodeLocation:  node.runner.codeLocation,
+		State:         node.outcome,
+		RunTime:       node.runTime,
+		Failure:       node.failure,
+	}
+}
+
+func NewBeforeSuiteNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer) SuiteNode {
+	return &simpleSuiteNode{
+		runner: newRunner(body, codeLocation, timeout, failer, types.SpecComponentTypeBeforeSuite, 0),
+	}
+}
+
+func NewAfterSuiteNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer) SuiteNode {
+	return &simpleSuiteNode{
+		runner: newRunner(body, codeLocation, timeout, failer, types.SpecComponentTypeAfterSuite, 0),
+	}
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/synchronized_after_suite_node.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/synchronized_after_suite_node.go
new file mode 100644
index 0000000..e7030d9
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/synchronized_after_suite_node.go
@@ -0,0 +1,89 @@
+package leafnodes
+
+import (
+	"encoding/json"
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/types"
+	"io/ioutil"
+	"net/http"
+	"time"
+)
+
+type synchronizedAfterSuiteNode struct {
+	runnerA *runner
+	runnerB *runner
+
+	outcome types.SpecState
+	failure types.SpecFailure
+	runTime time.Duration
+}
+
+func NewSynchronizedAfterSuiteNode(bodyA interface{}, bodyB interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer) SuiteNode {
+	return &synchronizedAfterSuiteNode{
+		runnerA: newRunner(bodyA, codeLocation, timeout, failer, types.SpecComponentTypeAfterSuite, 0),
+		runnerB: newRunner(bodyB, codeLocation, timeout, failer, types.SpecComponentTypeAfterSuite, 0),
+	}
+}
+
+func (node *synchronizedAfterSuiteNode) Run(parallelNode int, parallelTotal int, syncHost string) bool {
+	node.outcome, node.failure = node.runnerA.run()
+
+	if parallelNode == 1 {
+		if parallelTotal > 1 {
+			node.waitUntilOtherNodesAreDone(syncHost)
+		}
+
+		outcome, failure := node.runnerB.run()
+
+		if node.outcome == types.SpecStatePassed {
+			node.outcome, node.failure = outcome, failure
+		}
+	}
+
+	return node.outcome == types.SpecStatePassed
+}
+
+func (node *synchronizedAfterSuiteNode) Passed() bool {
+	return node.outcome == types.SpecStatePassed
+}
+
+func (node *synchronizedAfterSuiteNode) Summary() *types.SetupSummary {
+	return &types.SetupSummary{
+		ComponentType: node.runnerA.nodeType,
+		CodeLocation:  node.runnerA.codeLocation,
+		State:         node.outcome,
+		RunTime:       node.runTime,
+		Failure:       node.failure,
+	}
+}
+
+func (node *synchronizedAfterSuiteNode) waitUntilOtherNodesAreDone(syncHost string) {
+	for {
+		if node.canRun(syncHost) {
+			return
+		}
+
+		time.Sleep(50 * time.Millisecond)
+	}
+}
+
+func (node *synchronizedAfterSuiteNode) canRun(syncHost string) bool {
+	resp, err := http.Get(syncHost + "/RemoteAfterSuiteData")
+	if err != nil || resp.StatusCode != http.StatusOK {
+		return false
+	}
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return false
+	}
+	resp.Body.Close()
+
+	afterSuiteData := types.RemoteAfterSuiteData{}
+	err = json.Unmarshal(body, &afterSuiteData)
+	if err != nil {
+		return false
+	}
+
+	return afterSuiteData.CanRun
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/leafnodes/synchronized_before_suite_node.go b/vendor/github.com/onsi/ginkgo/internal/leafnodes/synchronized_before_suite_node.go
new file mode 100644
index 0000000..76a9679
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/leafnodes/synchronized_before_suite_node.go
@@ -0,0 +1,182 @@
+package leafnodes
+
+import (
+	"bytes"
+	"encoding/json"
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/types"
+	"io/ioutil"
+	"net/http"
+	"reflect"
+	"time"
+)
+
+type synchronizedBeforeSuiteNode struct {
+	runnerA *runner
+	runnerB *runner
+
+	data []byte
+
+	outcome types.SpecState
+	failure types.SpecFailure
+	runTime time.Duration
+}
+
+func NewSynchronizedBeforeSuiteNode(bodyA interface{}, bodyB interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer) SuiteNode {
+	node := &synchronizedBeforeSuiteNode{}
+
+	node.runnerA = newRunner(node.wrapA(bodyA), codeLocation, timeout, failer, types.SpecComponentTypeBeforeSuite, 0)
+	node.runnerB = newRunner(node.wrapB(bodyB), codeLocation, timeout, failer, types.SpecComponentTypeBeforeSuite, 0)
+
+	return node
+}
+
+func (node *synchronizedBeforeSuiteNode) Run(parallelNode int, parallelTotal int, syncHost string) bool {
+	t := time.Now()
+	defer func() {
+		node.runTime = time.Since(t)
+	}()
+
+	if parallelNode == 1 {
+		node.outcome, node.failure = node.runA(parallelTotal, syncHost)
+	} else {
+		node.outcome, node.failure = node.waitForA(syncHost)
+	}
+
+	if node.outcome != types.SpecStatePassed {
+		return false
+	}
+	node.outcome, node.failure = node.runnerB.run()
+
+	return node.outcome == types.SpecStatePassed
+}
+
+func (node *synchronizedBeforeSuiteNode) runA(parallelTotal int, syncHost string) (types.SpecState, types.SpecFailure) {
+	outcome, failure := node.runnerA.run()
+
+	if parallelTotal > 1 {
+		state := types.RemoteBeforeSuiteStatePassed
+		if outcome != types.SpecStatePassed {
+			state = types.RemoteBeforeSuiteStateFailed
+		}
+		json := (types.RemoteBeforeSuiteData{
+			Data:  node.data,
+			State: state,
+		}).ToJSON()
+		http.Post(syncHost+"/BeforeSuiteState", "application/json", bytes.NewBuffer(json))
+	}
+
+	return outcome, failure
+}
+
+func (node *synchronizedBeforeSuiteNode) waitForA(syncHost string) (types.SpecState, types.SpecFailure) {
+	failure := func(message string) types.SpecFailure {
+		return types.SpecFailure{
+			Message:               message,
+			Location:              node.runnerA.codeLocation,
+			ComponentType:         node.runnerA.nodeType,
+			ComponentIndex:        node.runnerA.componentIndex,
+			ComponentCodeLocation: node.runnerA.codeLocation,
+		}
+	}
+	for {
+		resp, err := http.Get(syncHost + "/BeforeSuiteState")
+		if err != nil || resp.StatusCode != http.StatusOK {
+			return types.SpecStateFailed, failure("Failed to fetch BeforeSuite state")
+		}
+
+		body, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			return types.SpecStateFailed, failure("Failed to read BeforeSuite state")
+		}
+		resp.Body.Close()
+
+		beforeSuiteData := types.RemoteBeforeSuiteData{}
+		err = json.Unmarshal(body, &beforeSuiteData)
+		if err != nil {
+			return types.SpecStateFailed, failure("Failed to decode BeforeSuite state")
+		}
+
+		switch beforeSuiteData.State {
+		case types.RemoteBeforeSuiteStatePassed:
+			node.data = beforeSuiteData.Data
+			return types.SpecStatePassed, types.SpecFailure{}
+		case types.RemoteBeforeSuiteStateFailed:
+			return types.SpecStateFailed, failure("BeforeSuite on Node 1 failed")
+		case types.RemoteBeforeSuiteStateDisappeared:
+			return types.SpecStateFailed, failure("Node 1 disappeared before completing BeforeSuite")
+		}
+
+		time.Sleep(50 * time.Millisecond)
+	}
+
+	return types.SpecStateFailed, failure("Shouldn't get here!")
+}
+
+func (node *synchronizedBeforeSuiteNode) Passed() bool {
+	return node.outcome == types.SpecStatePassed
+}
+
+func (node *synchronizedBeforeSuiteNode) Summary() *types.SetupSummary {
+	return &types.SetupSummary{
+		ComponentType: node.runnerA.nodeType,
+		CodeLocation:  node.runnerA.codeLocation,
+		State:         node.outcome,
+		RunTime:       node.runTime,
+		Failure:       node.failure,
+	}
+}
+
+func (node *synchronizedBeforeSuiteNode) wrapA(bodyA interface{}) interface{} {
+	typeA := reflect.TypeOf(bodyA)
+	if typeA.Kind() != reflect.Func {
+		panic("SynchronizedBeforeSuite expects a function as its first argument")
+	}
+
+	takesNothing := typeA.NumIn() == 0
+	takesADoneChannel := typeA.NumIn() == 1 && typeA.In(0).Kind() == reflect.Chan && typeA.In(0).Elem().Kind() == reflect.Interface
+	returnsBytes := typeA.NumOut() == 1 && typeA.Out(0).Kind() == reflect.Slice && typeA.Out(0).Elem().Kind() == reflect.Uint8
+
+	if !((takesNothing || takesADoneChannel) && returnsBytes) {
+		panic("SynchronizedBeforeSuite's first argument should be a function that returns []byte and either takes no arguments or takes a Done channel.")
+	}
+
+	if takesADoneChannel {
+		return func(done chan<- interface{}) {
+			out := reflect.ValueOf(bodyA).Call([]reflect.Value{reflect.ValueOf(done)})
+			node.data = out[0].Interface().([]byte)
+		}
+	}
+
+	return func() {
+		out := reflect.ValueOf(bodyA).Call([]reflect.Value{})
+		node.data = out[0].Interface().([]byte)
+	}
+}
+
+func (node *synchronizedBeforeSuiteNode) wrapB(bodyB interface{}) interface{} {
+	typeB := reflect.TypeOf(bodyB)
+	if typeB.Kind() != reflect.Func {
+		panic("SynchronizedBeforeSuite expects a function as its second argument")
+	}
+
+	returnsNothing := typeB.NumOut() == 0
+	takesBytesOnly := typeB.NumIn() == 1 && typeB.In(0).Kind() == reflect.Slice && typeB.In(0).Elem().Kind() == reflect.Uint8
+	takesBytesAndDone := typeB.NumIn() == 2 &&
+		typeB.In(0).Kind() == reflect.Slice && typeB.In(0).Elem().Kind() == reflect.Uint8 &&
+		typeB.In(1).Kind() == reflect.Chan && typeB.In(1).Elem().Kind() == reflect.Interface
+
+	if !((takesBytesOnly || takesBytesAndDone) && returnsNothing) {
+		panic("SynchronizedBeforeSuite's second argument should be a function that returns nothing and either takes []byte or ([]byte, Done)")
+	}
+
+	if takesBytesAndDone {
+		return func(done chan<- interface{}) {
+			reflect.ValueOf(bodyB).Call([]reflect.Value{reflect.ValueOf(node.data), reflect.ValueOf(done)})
+		}
+	}
+
+	return func() {
+		reflect.ValueOf(bodyB).Call([]reflect.Value{reflect.ValueOf(node.data)})
+	}
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/remote/aggregator.go b/vendor/github.com/onsi/ginkgo/internal/remote/aggregator.go
new file mode 100644
index 0000000..1e34dbf
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/remote/aggregator.go
@@ -0,0 +1,250 @@
+/*
+
+Aggregator is a reporter used by the Ginkgo CLI to aggregate and present parallel test output
+coherently as tests complete.  You shouldn't need to use this in your code.  To run tests in parallel:
+
+	ginkgo -nodes=N
+
+where N is the number of nodes you desire.
+*/
+package remote
+
+import (
+	"time"
+
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/reporters/stenographer"
+	"github.com/onsi/ginkgo/types"
+)
+
+type configAndSuite struct {
+	config  config.GinkgoConfigType
+	summary *types.SuiteSummary
+}
+
+type Aggregator struct {
+	nodeCount    int
+	config       config.DefaultReporterConfigType
+	stenographer stenographer.Stenographer
+	result       chan bool
+
+	suiteBeginnings           chan configAndSuite
+	aggregatedSuiteBeginnings []configAndSuite
+
+	beforeSuites           chan *types.SetupSummary
+	aggregatedBeforeSuites []*types.SetupSummary
+
+	afterSuites           chan *types.SetupSummary
+	aggregatedAfterSuites []*types.SetupSummary
+
+	specCompletions chan *types.SpecSummary
+	completedSpecs  []*types.SpecSummary
+
+	suiteEndings           chan *types.SuiteSummary
+	aggregatedSuiteEndings []*types.SuiteSummary
+	specs                  []*types.SpecSummary
+
+	startTime time.Time
+}
+
+func NewAggregator(nodeCount int, result chan bool, config config.DefaultReporterConfigType, stenographer stenographer.Stenographer) *Aggregator {
+	aggregator := &Aggregator{
+		nodeCount:    nodeCount,
+		result:       result,
+		config:       config,
+		stenographer: stenographer,
+
+		suiteBeginnings: make(chan configAndSuite, 0),
+		beforeSuites:    make(chan *types.SetupSummary, 0),
+		afterSuites:     make(chan *types.SetupSummary, 0),
+		specCompletions: make(chan *types.SpecSummary, 0),
+		suiteEndings:    make(chan *types.SuiteSummary, 0),
+	}
+
+	go aggregator.mux()
+
+	return aggregator
+}
+
+func (aggregator *Aggregator) SpecSuiteWillBegin(config config.GinkgoConfigType, summary *types.SuiteSummary) {
+	aggregator.suiteBeginnings <- configAndSuite{config, summary}
+}
+
+func (aggregator *Aggregator) BeforeSuiteDidRun(setupSummary *types.SetupSummary) {
+	aggregator.beforeSuites <- setupSummary
+}
+
+func (aggregator *Aggregator) AfterSuiteDidRun(setupSummary *types.SetupSummary) {
+	aggregator.afterSuites <- setupSummary
+}
+
+func (aggregator *Aggregator) SpecWillRun(specSummary *types.SpecSummary) {
+	//noop
+}
+
+func (aggregator *Aggregator) SpecDidComplete(specSummary *types.SpecSummary) {
+	aggregator.specCompletions <- specSummary
+}
+
+func (aggregator *Aggregator) SpecSuiteDidEnd(summary *types.SuiteSummary) {
+	aggregator.suiteEndings <- summary
+}
+
+func (aggregator *Aggregator) mux() {
+loop:
+	for {
+		select {
+		case configAndSuite := <-aggregator.suiteBeginnings:
+			aggregator.registerSuiteBeginning(configAndSuite)
+		case setupSummary := <-aggregator.beforeSuites:
+			aggregator.registerBeforeSuite(setupSummary)
+		case setupSummary := <-aggregator.afterSuites:
+			aggregator.registerAfterSuite(setupSummary)
+		case specSummary := <-aggregator.specCompletions:
+			aggregator.registerSpecCompletion(specSummary)
+		case suite := <-aggregator.suiteEndings:
+			finished, passed := aggregator.registerSuiteEnding(suite)
+			if finished {
+				aggregator.result <- passed
+				break loop
+			}
+		}
+	}
+}
+
+func (aggregator *Aggregator) registerSuiteBeginning(configAndSuite configAndSuite) {
+	aggregator.aggregatedSuiteBeginnings = append(aggregator.aggregatedSuiteBeginnings, configAndSuite)
+
+	if len(aggregator.aggregatedSuiteBeginnings) == 1 {
+		aggregator.startTime = time.Now()
+	}
+
+	if len(aggregator.aggregatedSuiteBeginnings) != aggregator.nodeCount {
+		return
+	}
+
+	aggregator.stenographer.AnnounceSuite(configAndSuite.summary.SuiteDescription, configAndSuite.config.RandomSeed, configAndSuite.config.RandomizeAllSpecs, aggregator.config.Succinct)
+
+	numberOfSpecsToRun := 0
+	totalNumberOfSpecs := 0
+	for _, configAndSuite := range aggregator.aggregatedSuiteBeginnings {
+		numberOfSpecsToRun += configAndSuite.summary.NumberOfSpecsThatWillBeRun
+		totalNumberOfSpecs += configAndSuite.summary.NumberOfTotalSpecs
+	}
+
+	aggregator.stenographer.AnnounceNumberOfSpecs(numberOfSpecsToRun, totalNumberOfSpecs, aggregator.config.Succinct)
+	aggregator.stenographer.AnnounceAggregatedParallelRun(aggregator.nodeCount, aggregator.config.Succinct)
+	aggregator.flushCompletedSpecs()
+}
+
+func (aggregator *Aggregator) registerBeforeSuite(setupSummary *types.SetupSummary) {
+	aggregator.aggregatedBeforeSuites = append(aggregator.aggregatedBeforeSuites, setupSummary)
+	aggregator.flushCompletedSpecs()
+}
+
+func (aggregator *Aggregator) registerAfterSuite(setupSummary *types.SetupSummary) {
+	aggregator.aggregatedAfterSuites = append(aggregator.aggregatedAfterSuites, setupSummary)
+	aggregator.flushCompletedSpecs()
+}
+
+func (aggregator *Aggregator) registerSpecCompletion(specSummary *types.SpecSummary) {
+	aggregator.completedSpecs = append(aggregator.completedSpecs, specSummary)
+	aggregator.specs = append(aggregator.specs, specSummary)
+	aggregator.flushCompletedSpecs()
+}
+
+func (aggregator *Aggregator) flushCompletedSpecs() {
+	if len(aggregator.aggregatedSuiteBeginnings) != aggregator.nodeCount {
+		return
+	}
+
+	for _, setupSummary := range aggregator.aggregatedBeforeSuites {
+		aggregator.announceBeforeSuite(setupSummary)
+	}
+
+	for _, specSummary := range aggregator.completedSpecs {
+		aggregator.announceSpec(specSummary)
+	}
+
+	for _, setupSummary := range aggregator.aggregatedAfterSuites {
+		aggregator.announceAfterSuite(setupSummary)
+	}
+
+	aggregator.aggregatedBeforeSuites = []*types.SetupSummary{}
+	aggregator.completedSpecs = []*types.SpecSummary{}
+	aggregator.aggregatedAfterSuites = []*types.SetupSummary{}
+}
+
+func (aggregator *Aggregator) announceBeforeSuite(setupSummary *types.SetupSummary) {
+	aggregator.stenographer.AnnounceCapturedOutput(setupSummary.CapturedOutput)
+	if setupSummary.State != types.SpecStatePassed {
+		aggregator.stenographer.AnnounceBeforeSuiteFailure(setupSummary, aggregator.config.Succinct, aggregator.config.FullTrace)
+	}
+}
+
+func (aggregator *Aggregator) announceAfterSuite(setupSummary *types.SetupSummary) {
+	aggregator.stenographer.AnnounceCapturedOutput(setupSummary.CapturedOutput)
+	if setupSummary.State != types.SpecStatePassed {
+		aggregator.stenographer.AnnounceAfterSuiteFailure(setupSummary, aggregator.config.Succinct, aggregator.config.FullTrace)
+	}
+}
+
+func (aggregator *Aggregator) announceSpec(specSummary *types.SpecSummary) {
+	if aggregator.config.Verbose && specSummary.State != types.SpecStatePending && specSummary.State != types.SpecStateSkipped {
+		aggregator.stenographer.AnnounceSpecWillRun(specSummary)
+	}
+
+	aggregator.stenographer.AnnounceCapturedOutput(specSummary.CapturedOutput)
+
+	switch specSummary.State {
+	case types.SpecStatePassed:
+		if specSummary.IsMeasurement {
+			aggregator.stenographer.AnnounceSuccesfulMeasurement(specSummary, aggregator.config.Succinct)
+		} else if specSummary.RunTime.Seconds() >= aggregator.config.SlowSpecThreshold {
+			aggregator.stenographer.AnnounceSuccesfulSlowSpec(specSummary, aggregator.config.Succinct)
+		} else {
+			aggregator.stenographer.AnnounceSuccesfulSpec(specSummary)
+		}
+
+	case types.SpecStatePending:
+		aggregator.stenographer.AnnouncePendingSpec(specSummary, aggregator.config.NoisyPendings && !aggregator.config.Succinct)
+	case types.SpecStateSkipped:
+		aggregator.stenographer.AnnounceSkippedSpec(specSummary, aggregator.config.Succinct, aggregator.config.FullTrace)
+	case types.SpecStateTimedOut:
+		aggregator.stenographer.AnnounceSpecTimedOut(specSummary, aggregator.config.Succinct, aggregator.config.FullTrace)
+	case types.SpecStatePanicked:
+		aggregator.stenographer.AnnounceSpecPanicked(specSummary, aggregator.config.Succinct, aggregator.config.FullTrace)
+	case types.SpecStateFailed:
+		aggregator.stenographer.AnnounceSpecFailed(specSummary, aggregator.config.Succinct, aggregator.config.FullTrace)
+	}
+}
+
+func (aggregator *Aggregator) registerSuiteEnding(suite *types.SuiteSummary) (finished bool, passed bool) {
+	aggregator.aggregatedSuiteEndings = append(aggregator.aggregatedSuiteEndings, suite)
+	if len(aggregator.aggregatedSuiteEndings) < aggregator.nodeCount {
+		return false, false
+	}
+
+	aggregatedSuiteSummary := &types.SuiteSummary{}
+	aggregatedSuiteSummary.SuiteSucceeded = true
+
+	for _, suiteSummary := range aggregator.aggregatedSuiteEndings {
+		if suiteSummary.SuiteSucceeded == false {
+			aggregatedSuiteSummary.SuiteSucceeded = false
+		}
+
+		aggregatedSuiteSummary.NumberOfSpecsThatWillBeRun += suiteSummary.NumberOfSpecsThatWillBeRun
+		aggregatedSuiteSummary.NumberOfTotalSpecs += suiteSummary.NumberOfTotalSpecs
+		aggregatedSuiteSummary.NumberOfPassedSpecs += suiteSummary.NumberOfPassedSpecs
+		aggregatedSuiteSummary.NumberOfFailedSpecs += suiteSummary.NumberOfFailedSpecs
+		aggregatedSuiteSummary.NumberOfPendingSpecs += suiteSummary.NumberOfPendingSpecs
+		aggregatedSuiteSummary.NumberOfSkippedSpecs += suiteSummary.NumberOfSkippedSpecs
+	}
+
+	aggregatedSuiteSummary.RunTime = time.Since(aggregator.startTime)
+
+	aggregator.stenographer.SummarizeFailures(aggregator.specs)
+	aggregator.stenographer.AnnounceSpecRunCompletion(aggregatedSuiteSummary, aggregator.config.Succinct)
+
+	return true, aggregatedSuiteSummary.SuiteSucceeded
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/remote/forwarding_reporter.go b/vendor/github.com/onsi/ginkgo/internal/remote/forwarding_reporter.go
new file mode 100644
index 0000000..025eb50
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/remote/forwarding_reporter.go
@@ -0,0 +1,90 @@
+package remote
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"net/http"
+
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/types"
+)
+
+//An interface to net/http's client to allow the injection of fakes under test
+type Poster interface {
+	Post(url string, bodyType string, body io.Reader) (resp *http.Response, err error)
+}
+
+/*
+The ForwardingReporter is a Ginkgo reporter that forwards information to
+a Ginkgo remote server.
+
+When streaming parallel test output, this repoter is automatically installed by Ginkgo.
+
+This is accomplished by passing in the GINKGO_REMOTE_REPORTING_SERVER environment variable to `go test`, the Ginkgo test runner
+detects this environment variable (which should contain the host of the server) and automatically installs a ForwardingReporter
+in place of Ginkgo's DefaultReporter.
+*/
+
+type ForwardingReporter struct {
+	serverHost        string
+	poster            Poster
+	outputInterceptor OutputInterceptor
+}
+
+func NewForwardingReporter(serverHost string, poster Poster, outputInterceptor OutputInterceptor) *ForwardingReporter {
+	return &ForwardingReporter{
+		serverHost:        serverHost,
+		poster:            poster,
+		outputInterceptor: outputInterceptor,
+	}
+}
+
+func (reporter *ForwardingReporter) post(path string, data interface{}) {
+	encoded, _ := json.Marshal(data)
+	buffer := bytes.NewBuffer(encoded)
+	reporter.poster.Post(reporter.serverHost+path, "application/json", buffer)
+}
+
+func (reporter *ForwardingReporter) SpecSuiteWillBegin(conf config.GinkgoConfigType, summary *types.SuiteSummary) {
+	data := struct {
+		Config  config.GinkgoConfigType `json:"config"`
+		Summary *types.SuiteSummary     `json:"suite-summary"`
+	}{
+		conf,
+		summary,
+	}
+
+	reporter.outputInterceptor.StartInterceptingOutput()
+	reporter.post("/SpecSuiteWillBegin", data)
+}
+
+func (reporter *ForwardingReporter) BeforeSuiteDidRun(setupSummary *types.SetupSummary) {
+	output, _ := reporter.outputInterceptor.StopInterceptingAndReturnOutput()
+	reporter.outputInterceptor.StartInterceptingOutput()
+	setupSummary.CapturedOutput = output
+	reporter.post("/BeforeSuiteDidRun", setupSummary)
+}
+
+func (reporter *ForwardingReporter) SpecWillRun(specSummary *types.SpecSummary) {
+	reporter.post("/SpecWillRun", specSummary)
+}
+
+func (reporter *ForwardingReporter) SpecDidComplete(specSummary *types.SpecSummary) {
+	output, _ := reporter.outputInterceptor.StopInterceptingAndReturnOutput()
+	reporter.outputInterceptor.StartInterceptingOutput()
+	specSummary.CapturedOutput = output
+	reporter.post("/SpecDidComplete", specSummary)
+}
+
+func (reporter *ForwardingReporter) AfterSuiteDidRun(setupSummary *types.SetupSummary) {
+	output, _ := reporter.outputInterceptor.StopInterceptingAndReturnOutput()
+	reporter.outputInterceptor.StartInterceptingOutput()
+	setupSummary.CapturedOutput = output
+	reporter.post("/AfterSuiteDidRun", setupSummary)
+}
+
+func (reporter *ForwardingReporter) SpecSuiteDidEnd(summary *types.SuiteSummary) {
+	reporter.outputInterceptor.StopInterceptingAndReturnOutput()
+	reporter.post("/SpecSuiteDidEnd", summary)
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor.go b/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor.go
new file mode 100644
index 0000000..093f451
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor.go
@@ -0,0 +1,10 @@
+package remote
+
+/*
+The OutputInterceptor is used by the ForwardingReporter to
+intercept and capture all stdin and stderr output during a test run.
+*/
+type OutputInterceptor interface {
+	StartInterceptingOutput() error
+	StopInterceptingAndReturnOutput() (string, error)
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor_unix.go b/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor_unix.go
new file mode 100644
index 0000000..181b227
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor_unix.go
@@ -0,0 +1,52 @@
+// +build freebsd openbsd netbsd dragonfly darwin linux
+
+package remote
+
+import (
+	"errors"
+	"io/ioutil"
+	"os"
+	"syscall"
+)
+
+func NewOutputInterceptor() OutputInterceptor {
+	return &outputInterceptor{}
+}
+
+type outputInterceptor struct {
+	redirectFile *os.File
+	intercepting bool
+}
+
+func (interceptor *outputInterceptor) StartInterceptingOutput() error {
+	if interceptor.intercepting {
+		return errors.New("Already intercepting output!")
+	}
+	interceptor.intercepting = true
+
+	var err error
+
+	interceptor.redirectFile, err = ioutil.TempFile("", "ginkgo-output")
+	if err != nil {
+		return err
+	}
+
+	syscall.Dup2(int(interceptor.redirectFile.Fd()), 1)
+	syscall.Dup2(int(interceptor.redirectFile.Fd()), 2)
+
+	return nil
+}
+
+func (interceptor *outputInterceptor) StopInterceptingAndReturnOutput() (string, error) {
+	if !interceptor.intercepting {
+		return "", errors.New("Not intercepting output!")
+	}
+
+	interceptor.redirectFile.Close()
+	output, err := ioutil.ReadFile(interceptor.redirectFile.Name())
+	os.Remove(interceptor.redirectFile.Name())
+
+	interceptor.intercepting = false
+
+	return string(output), err
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor_win.go b/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor_win.go
new file mode 100644
index 0000000..c8f97d9
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/remote/output_interceptor_win.go
@@ -0,0 +1,33 @@
+// +build windows
+
+package remote
+
+import (
+	"errors"
+)
+
+func NewOutputInterceptor() OutputInterceptor {
+	return &outputInterceptor{}
+}
+
+type outputInterceptor struct {
+	intercepting bool
+}
+
+func (interceptor *outputInterceptor) StartInterceptingOutput() error {
+	if interceptor.intercepting {
+		return errors.New("Already intercepting output!")
+	}
+	interceptor.intercepting = true
+
+	// not working on windows...
+
+	return nil
+}
+
+func (interceptor *outputInterceptor) StopInterceptingAndReturnOutput() (string, error) {
+	// not working on windows...
+	interceptor.intercepting = false
+
+	return "", nil
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/remote/server.go b/vendor/github.com/onsi/ginkgo/internal/remote/server.go
new file mode 100644
index 0000000..b55c681
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/remote/server.go
@@ -0,0 +1,204 @@
+/*
+
+The remote package provides the pieces to allow Ginkgo test suites to report to remote listeners.
+This is used, primarily, to enable streaming parallel test output but has, in principal, broader applications (e.g. streaming test output to a browser).
+
+*/
+
+package remote
+
+import (
+	"encoding/json"
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/reporters"
+	"github.com/onsi/ginkgo/types"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"sync"
+)
+
+/*
+Server spins up on an automatically selected port and listens for communication from the forwarding reporter.
+It then forwards that communication to attached reporters.
+*/
+type Server struct {
+	listener        net.Listener
+	reporters       []reporters.Reporter
+	alives          []func() bool
+	lock            *sync.Mutex
+	beforeSuiteData types.RemoteBeforeSuiteData
+	parallelTotal   int
+}
+
+//Create a new server, automatically selecting a port
+func NewServer(parallelTotal int) (*Server, error) {
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		return nil, err
+	}
+	return &Server{
+		listener:        listener,
+		lock:            &sync.Mutex{},
+		alives:          make([]func() bool, parallelTotal),
+		beforeSuiteData: types.RemoteBeforeSuiteData{nil, types.RemoteBeforeSuiteStatePending},
+		parallelTotal:   parallelTotal,
+	}, nil
+}
+
+//Start the server.  You don't need to `go s.Start()`, just `s.Start()`
+func (server *Server) Start() {
+	httpServer := &http.Server{}
+	mux := http.NewServeMux()
+	httpServer.Handler = mux
+
+	//streaming endpoints
+	mux.HandleFunc("/SpecSuiteWillBegin", server.specSuiteWillBegin)
+	mux.HandleFunc("/BeforeSuiteDidRun", server.beforeSuiteDidRun)
+	mux.HandleFunc("/AfterSuiteDidRun", server.afterSuiteDidRun)
+	mux.HandleFunc("/SpecWillRun", server.specWillRun)
+	mux.HandleFunc("/SpecDidComplete", server.specDidComplete)
+	mux.HandleFunc("/SpecSuiteDidEnd", server.specSuiteDidEnd)
+
+	//synchronization endpoints
+	mux.HandleFunc("/BeforeSuiteState", server.handleBeforeSuiteState)
+	mux.HandleFunc("/RemoteAfterSuiteData", server.handleRemoteAfterSuiteData)
+
+	go httpServer.Serve(server.listener)
+}
+
+//Stop the server
+func (server *Server) Close() {
+	server.listener.Close()
+}
+
+//The address the server can be reached it.  Pass this into the `ForwardingReporter`.
+func (server *Server) Address() string {
+	return "http://" + server.listener.Addr().String()
+}
+
+//
+// Streaming Endpoints
+//
+
+//The server will forward all received messages to Ginkgo reporters registered with `RegisterReporters`
+func (server *Server) readAll(request *http.Request) []byte {
+	defer request.Body.Close()
+	body, _ := ioutil.ReadAll(request.Body)
+	return body
+}
+
+func (server *Server) RegisterReporters(reporters ...reporters.Reporter) {
+	server.reporters = reporters
+}
+
+func (server *Server) specSuiteWillBegin(writer http.ResponseWriter, request *http.Request) {
+	body := server.readAll(request)
+
+	var data struct {
+		Config  config.GinkgoConfigType `json:"config"`
+		Summary *types.SuiteSummary     `json:"suite-summary"`
+	}
+
+	json.Unmarshal(body, &data)
+
+	for _, reporter := range server.reporters {
+		reporter.SpecSuiteWillBegin(data.Config, data.Summary)
+	}
+}
+
+func (server *Server) beforeSuiteDidRun(writer http.ResponseWriter, request *http.Request) {
+	body := server.readAll(request)
+	var setupSummary *types.SetupSummary
+	json.Unmarshal(body, &setupSummary)
+
+	for _, reporter := range server.reporters {
+		reporter.BeforeSuiteDidRun(setupSummary)
+	}
+}
+
+func (server *Server) afterSuiteDidRun(writer http.ResponseWriter, request *http.Request) {
+	body := server.readAll(request)
+	var setupSummary *types.SetupSummary
+	json.Unmarshal(body, &setupSummary)
+
+	for _, reporter := range server.reporters {
+		reporter.AfterSuiteDidRun(setupSummary)
+	}
+}
+
+func (server *Server) specWillRun(writer http.ResponseWriter, request *http.Request) {
+	body := server.readAll(request)
+	var specSummary *types.SpecSummary
+	json.Unmarshal(body, &specSummary)
+
+	for _, reporter := range server.reporters {
+		reporter.SpecWillRun(specSummary)
+	}
+}
+
+func (server *Server) specDidComplete(writer http.ResponseWriter, request *http.Request) {
+	body := server.readAll(request)
+	var specSummary *types.SpecSummary
+	json.Unmarshal(body, &specSummary)
+
+	for _, reporter := range server.reporters {
+		reporter.SpecDidComplete(specSummary)
+	}
+}
+
+func (server *Server) specSuiteDidEnd(writer http.ResponseWriter, request *http.Request) {
+	body := server.readAll(request)
+	var suiteSummary *types.SuiteSummary
+	json.Unmarshal(body, &suiteSummary)
+
+	for _, reporter := range server.reporters {
+		reporter.SpecSuiteDidEnd(suiteSummary)
+	}
+}
+
+//
+// Synchronization Endpoints
+//
+
+func (server *Server) RegisterAlive(node int, alive func() bool) {
+	server.lock.Lock()
+	defer server.lock.Unlock()
+	server.alives[node-1] = alive
+}
+
+func (server *Server) nodeIsAlive(node int) bool {
+	server.lock.Lock()
+	defer server.lock.Unlock()
+	alive := server.alives[node-1]
+	if alive == nil {
+		return true
+	}
+	return alive()
+}
+
+func (server *Server) handleBeforeSuiteState(writer http.ResponseWriter, request *http.Request) {
+	if request.Method == "POST" {
+		dec := json.NewDecoder(request.Body)
+		dec.Decode(&(server.beforeSuiteData))
+	} else {
+		beforeSuiteData := server.beforeSuiteData
+		if beforeSuiteData.State == types.RemoteBeforeSuiteStatePending && !server.nodeIsAlive(1) {
+			beforeSuiteData.State = types.RemoteBeforeSuiteStateDisappeared
+		}
+		enc := json.NewEncoder(writer)
+		enc.Encode(beforeSuiteData)
+	}
+}
+
+func (server *Server) handleRemoteAfterSuiteData(writer http.ResponseWriter, request *http.Request) {
+	afterSuiteData := types.RemoteAfterSuiteData{
+		CanRun: true,
+	}
+	for i := 2; i <= server.parallelTotal; i++ {
+		afterSuiteData.CanRun = afterSuiteData.CanRun && !server.nodeIsAlive(i)
+	}
+
+	enc := json.NewEncoder(writer)
+	enc.Encode(afterSuiteData)
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/spec/index_computer.go b/vendor/github.com/onsi/ginkgo/internal/spec/index_computer.go
new file mode 100644
index 0000000..5a67fc7
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/spec/index_computer.go
@@ -0,0 +1,55 @@
+package spec
+
+func ParallelizedIndexRange(length int, parallelTotal int, parallelNode int) (startIndex int, count int) {
+	if length == 0 {
+		return 0, 0
+	}
+
+	// We have more nodes than tests. Trivial case.
+	if parallelTotal >= length {
+		if parallelNode > length {
+			return 0, 0
+		} else {
+			return parallelNode - 1, 1
+		}
+	}
+
+	// This is the minimum amount of tests that a node will be required to run
+	minTestsPerNode := length / parallelTotal
+
+	// This is the maximum amount of tests that a node will be required to run
+	// The algorithm guarantees that this would be equal to at least the minimum amount
+	// and at most one more
+	maxTestsPerNode := minTestsPerNode
+	if length%parallelTotal != 0 {
+		maxTestsPerNode++
+	}
+
+	// Number of nodes that will have to run the maximum amount of tests per node
+	numMaxLoadNodes := length % parallelTotal
+
+	// Number of nodes that precede the current node and will have to run the maximum amount of tests per node
+	var numPrecedingMaxLoadNodes int
+	if parallelNode > numMaxLoadNodes {
+		numPrecedingMaxLoadNodes = numMaxLoadNodes
+	} else {
+		numPrecedingMaxLoadNodes = parallelNode - 1
+	}
+
+	// Number of nodes that precede the current node and will have to run the minimum amount of tests per node
+	var numPrecedingMinLoadNodes int
+	if parallelNode <= numMaxLoadNodes {
+		numPrecedingMinLoadNodes = 0
+	} else {
+		numPrecedingMinLoadNodes = parallelNode - numMaxLoadNodes - 1
+	}
+
+	// Evaluate the test start index and number of tests to run
+	startIndex = numPrecedingMaxLoadNodes*maxTestsPerNode + numPrecedingMinLoadNodes*minTestsPerNode
+	if parallelNode > numMaxLoadNodes {
+		count = minTestsPerNode
+	} else {
+		count = maxTestsPerNode
+	}
+	return
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/spec/spec.go b/vendor/github.com/onsi/ginkgo/internal/spec/spec.go
new file mode 100644
index 0000000..ef788b7
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/spec/spec.go
@@ -0,0 +1,197 @@
+package spec
+
+import (
+	"fmt"
+	"io"
+	"time"
+
+	"github.com/onsi/ginkgo/internal/containernode"
+	"github.com/onsi/ginkgo/internal/leafnodes"
+	"github.com/onsi/ginkgo/types"
+)
+
+type Spec struct {
+	subject          leafnodes.SubjectNode
+	focused          bool
+	announceProgress bool
+
+	containers []*containernode.ContainerNode
+
+	state   types.SpecState
+	runTime time.Duration
+	failure types.SpecFailure
+}
+
+func New(subject leafnodes.SubjectNode, containers []*containernode.ContainerNode, announceProgress bool) *Spec {
+	spec := &Spec{
+		subject:          subject,
+		containers:       containers,
+		focused:          subject.Flag() == types.FlagTypeFocused,
+		announceProgress: announceProgress,
+	}
+
+	spec.processFlag(subject.Flag())
+	for i := len(containers) - 1; i >= 0; i-- {
+		spec.processFlag(containers[i].Flag())
+	}
+
+	return spec
+}
+
+func (spec *Spec) processFlag(flag types.FlagType) {
+	if flag == types.FlagTypeFocused {
+		spec.focused = true
+	} else if flag == types.FlagTypePending {
+		spec.state = types.SpecStatePending
+	}
+}
+
+func (spec *Spec) Skip() {
+	spec.state = types.SpecStateSkipped
+}
+
+func (spec *Spec) Failed() bool {
+	return spec.state == types.SpecStateFailed || spec.state == types.SpecStatePanicked || spec.state == types.SpecStateTimedOut
+}
+
+func (spec *Spec) Passed() bool {
+	return spec.state == types.SpecStatePassed
+}
+
+func (spec *Spec) Pending() bool {
+	return spec.state == types.SpecStatePending
+}
+
+func (spec *Spec) Skipped() bool {
+	return spec.state == types.SpecStateSkipped
+}
+
+func (spec *Spec) Focused() bool {
+	return spec.focused
+}
+
+func (spec *Spec) IsMeasurement() bool {
+	return spec.subject.Type() == types.SpecComponentTypeMeasure
+}
+
+func (spec *Spec) Summary(suiteID string) *types.SpecSummary {
+	componentTexts := make([]string, len(spec.containers)+1)
+	componentCodeLocations := make([]types.CodeLocation, len(spec.containers)+1)
+
+	for i, container := range spec.containers {
+		componentTexts[i] = container.Text()
+		componentCodeLocations[i] = container.CodeLocation()
+	}
+
+	componentTexts[len(spec.containers)] = spec.subject.Text()
+	componentCodeLocations[len(spec.containers)] = spec.subject.CodeLocation()
+
+	return &types.SpecSummary{
+		IsMeasurement:          spec.IsMeasurement(),
+		NumberOfSamples:        spec.subject.Samples(),
+		ComponentTexts:         componentTexts,
+		ComponentCodeLocations: componentCodeLocations,
+		State:        spec.state,
+		RunTime:      spec.runTime,
+		Failure:      spec.failure,
+		Measurements: spec.measurementsReport(),
+		SuiteID:      suiteID,
+	}
+}
+
+func (spec *Spec) ConcatenatedString() string {
+	s := ""
+	for _, container := range spec.containers {
+		s += container.Text() + " "
+	}
+
+	return s + spec.subject.Text()
+}
+
+func (spec *Spec) Run(writer io.Writer) {
+	startTime := time.Now()
+	defer func() {
+		spec.runTime = time.Since(startTime)
+	}()
+
+	for sample := 0; sample < spec.subject.Samples(); sample++ {
+		spec.runSample(sample, writer)
+
+		if spec.state != types.SpecStatePassed {
+			return
+		}
+	}
+}
+
+func (spec *Spec) runSample(sample int, writer io.Writer) {
+	spec.state = types.SpecStatePassed
+	spec.failure = types.SpecFailure{}
+	innerMostContainerIndexToUnwind := -1
+
+	defer func() {
+		for i := innerMostContainerIndexToUnwind; i >= 0; i-- {
+			container := spec.containers[i]
+			for _, afterEach := range container.SetupNodesOfType(types.SpecComponentTypeAfterEach) {
+				spec.announceSetupNode(writer, "AfterEach", container, afterEach)
+				afterEachState, afterEachFailure := afterEach.Run()
+				if afterEachState != types.SpecStatePassed && spec.state == types.SpecStatePassed {
+					spec.state = afterEachState
+					spec.failure = afterEachFailure
+				}
+			}
+		}
+	}()
+
+	for i, container := range spec.containers {
+		innerMostContainerIndexToUnwind = i
+		for _, beforeEach := range container.SetupNodesOfType(types.SpecComponentTypeBeforeEach) {
+			spec.announceSetupNode(writer, "BeforeEach", container, beforeEach)
+			spec.state, spec.failure = beforeEach.Run()
+			if spec.state != types.SpecStatePassed {
+				return
+			}
+		}
+	}
+
+	for _, container := range spec.containers {
+		for _, justBeforeEach := range container.SetupNodesOfType(types.SpecComponentTypeJustBeforeEach) {
+			spec.announceSetupNode(writer, "JustBeforeEach", container, justBeforeEach)
+			spec.state, spec.failure = justBeforeEach.Run()
+			if spec.state != types.SpecStatePassed {
+				return
+			}
+		}
+	}
+
+	spec.announceSubject(writer, spec.subject)
+	spec.state, spec.failure = spec.subject.Run()
+}
+
+func (spec *Spec) announceSetupNode(writer io.Writer, nodeType string, container *containernode.ContainerNode, setupNode leafnodes.BasicNode) {
+	if spec.announceProgress {
+		s := fmt.Sprintf("[%s] %s\n  %s\n", nodeType, container.Text(), setupNode.CodeLocation().String())
+		writer.Write([]byte(s))
+	}
+}
+
+func (spec *Spec) announceSubject(writer io.Writer, subject leafnodes.SubjectNode) {
+	if spec.announceProgress {
+		nodeType := ""
+		switch subject.Type() {
+		case types.SpecComponentTypeIt:
+			nodeType = "It"
+		case types.SpecComponentTypeMeasure:
+			nodeType = "Measure"
+		}
+		s := fmt.Sprintf("[%s] %s\n  %s\n", nodeType, subject.Text(), subject.CodeLocation().String())
+		writer.Write([]byte(s))
+	}
+}
+
+func (spec *Spec) measurementsReport() map[string]*types.SpecMeasurement {
+	if !spec.IsMeasurement() || spec.Failed() {
+		return map[string]*types.SpecMeasurement{}
+	}
+
+	return spec.subject.(*leafnodes.MeasureNode).MeasurementsReport()
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/spec/specs.go b/vendor/github.com/onsi/ginkgo/internal/spec/specs.go
new file mode 100644
index 0000000..9c671e3
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/spec/specs.go
@@ -0,0 +1,122 @@
+package spec
+
+import (
+	"math/rand"
+	"regexp"
+	"sort"
+)
+
+type Specs struct {
+	specs                 []*Spec
+	numberOfOriginalSpecs int
+	hasProgrammaticFocus  bool
+}
+
+func NewSpecs(specs []*Spec) *Specs {
+	return &Specs{
+		specs: specs,
+		numberOfOriginalSpecs: len(specs),
+	}
+}
+
+func (e *Specs) Specs() []*Spec {
+	return e.specs
+}
+
+func (e *Specs) NumberOfOriginalSpecs() int {
+	return e.numberOfOriginalSpecs
+}
+
+func (e *Specs) HasProgrammaticFocus() bool {
+	return e.hasProgrammaticFocus
+}
+
+func (e *Specs) Shuffle(r *rand.Rand) {
+	sort.Sort(e)
+	permutation := r.Perm(len(e.specs))
+	shuffledSpecs := make([]*Spec, len(e.specs))
+	for i, j := range permutation {
+		shuffledSpecs[i] = e.specs[j]
+	}
+	e.specs = shuffledSpecs
+}
+
+func (e *Specs) ApplyFocus(description string, focusString string, skipString string) {
+	if focusString == "" && skipString == "" {
+		e.applyProgrammaticFocus()
+	} else {
+		e.applyRegExpFocus(description, focusString, skipString)
+	}
+}
+
+func (e *Specs) applyProgrammaticFocus() {
+	e.hasProgrammaticFocus = false
+	for _, spec := range e.specs {
+		if spec.Focused() && !spec.Pending() {
+			e.hasProgrammaticFocus = true
+			break
+		}
+	}
+
+	if e.hasProgrammaticFocus {
+		for _, spec := range e.specs {
+			if !spec.Focused() {
+				spec.Skip()
+			}
+		}
+	}
+}
+
+func (e *Specs) applyRegExpFocus(description string, focusString string, skipString string) {
+	for _, spec := range e.specs {
+		matchesFocus := true
+		matchesSkip := false
+
+		toMatch := []byte(description + " " + spec.ConcatenatedString())
+
+		if focusString != "" {
+			focusFilter := regexp.MustCompile(focusString)
+			matchesFocus = focusFilter.Match([]byte(toMatch))
+		}
+
+		if skipString != "" {
+			skipFilter := regexp.MustCompile(skipString)
+			matchesSkip = skipFilter.Match([]byte(toMatch))
+		}
+
+		if !matchesFocus || matchesSkip {
+			spec.Skip()
+		}
+	}
+}
+
+func (e *Specs) SkipMeasurements() {
+	for _, spec := range e.specs {
+		if spec.IsMeasurement() {
+			spec.Skip()
+		}
+	}
+}
+
+func (e *Specs) TrimForParallelization(total int, node int) {
+	startIndex, count := ParallelizedIndexRange(len(e.specs), total, node)
+	if count == 0 {
+		e.specs = make([]*Spec, 0)
+	} else {
+		e.specs = e.specs[startIndex : startIndex+count]
+	}
+}
+
+//sort.Interface
+
+func (e *Specs) Len() int {
+	return len(e.specs)
+}
+
+func (e *Specs) Less(i, j int) bool {
+	return e.specs[i].ConcatenatedString() < e.specs[j].ConcatenatedString()
+}
+
+func (e *Specs) Swap(i, j int) {
+	e.specs[i], e.specs[j] = e.specs[j], e.specs[i]
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/specrunner/random_id.go b/vendor/github.com/onsi/ginkgo/internal/specrunner/random_id.go
new file mode 100644
index 0000000..a0b8b62
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/specrunner/random_id.go
@@ -0,0 +1,15 @@
+package specrunner
+
+import (
+	"crypto/rand"
+	"fmt"
+)
+
+func randomID() string {
+	b := make([]byte, 8)
+	_, err := rand.Read(b)
+	if err != nil {
+		return ""
+	}
+	return fmt.Sprintf("%x-%x-%x-%x", b[0:2], b[2:4], b[4:6], b[6:8])
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/specrunner/spec_runner.go b/vendor/github.com/onsi/ginkgo/internal/specrunner/spec_runner.go
new file mode 100644
index 0000000..7ca7740
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/specrunner/spec_runner.go
@@ -0,0 +1,324 @@
+package specrunner
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"sync"
+	"syscall"
+
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/internal/leafnodes"
+	"github.com/onsi/ginkgo/internal/spec"
+	Writer "github.com/onsi/ginkgo/internal/writer"
+	"github.com/onsi/ginkgo/reporters"
+	"github.com/onsi/ginkgo/types"
+
+	"time"
+)
+
+type SpecRunner struct {
+	description     string
+	beforeSuiteNode leafnodes.SuiteNode
+	specs           *spec.Specs
+	afterSuiteNode  leafnodes.SuiteNode
+	reporters       []reporters.Reporter
+	startTime       time.Time
+	suiteID         string
+	runningSpec     *spec.Spec
+	writer          Writer.WriterInterface
+	config          config.GinkgoConfigType
+	interrupted     bool
+	lock            *sync.Mutex
+}
+
+func New(description string, beforeSuiteNode leafnodes.SuiteNode, specs *spec.Specs, afterSuiteNode leafnodes.SuiteNode, reporters []reporters.Reporter, writer Writer.WriterInterface, config config.GinkgoConfigType) *SpecRunner {
+	return &SpecRunner{
+		description:     description,
+		beforeSuiteNode: beforeSuiteNode,
+		specs:           specs,
+		afterSuiteNode:  afterSuiteNode,
+		reporters:       reporters,
+		writer:          writer,
+		config:          config,
+		suiteID:         randomID(),
+		lock:            &sync.Mutex{},
+	}
+}
+
+func (runner *SpecRunner) Run() bool {
+	if runner.config.DryRun {
+		runner.performDryRun()
+		return true
+	}
+
+	runner.reportSuiteWillBegin()
+	go runner.registerForInterrupts()
+
+	suitePassed := runner.runBeforeSuite()
+
+	if suitePassed {
+		suitePassed = runner.runSpecs()
+	}
+
+	runner.blockForeverIfInterrupted()
+
+	suitePassed = runner.runAfterSuite() && suitePassed
+
+	runner.reportSuiteDidEnd(suitePassed)
+
+	return suitePassed
+}
+
+func (runner *SpecRunner) performDryRun() {
+	runner.reportSuiteWillBegin()
+
+	if runner.beforeSuiteNode != nil {
+		summary := runner.beforeSuiteNode.Summary()
+		summary.State = types.SpecStatePassed
+		runner.reportBeforeSuite(summary)
+	}
+
+	for _, spec := range runner.specs.Specs() {
+		summary := spec.Summary(runner.suiteID)
+		runner.reportSpecWillRun(summary)
+		if summary.State == types.SpecStateInvalid {
+			summary.State = types.SpecStatePassed
+		}
+		runner.reportSpecDidComplete(summary, false)
+	}
+
+	if runner.afterSuiteNode != nil {
+		summary := runner.afterSuiteNode.Summary()
+		summary.State = types.SpecStatePassed
+		runner.reportAfterSuite(summary)
+	}
+
+	runner.reportSuiteDidEnd(true)
+}
+
+func (runner *SpecRunner) runBeforeSuite() bool {
+	if runner.beforeSuiteNode == nil || runner.wasInterrupted() {
+		return true
+	}
+
+	runner.writer.Truncate()
+	conf := runner.config
+	passed := runner.beforeSuiteNode.Run(conf.ParallelNode, conf.ParallelTotal, conf.SyncHost)
+	if !passed {
+		runner.writer.DumpOut()
+	}
+	runner.reportBeforeSuite(runner.beforeSuiteNode.Summary())
+	return passed
+}
+
+func (runner *SpecRunner) runAfterSuite() bool {
+	if runner.afterSuiteNode == nil {
+		return true
+	}
+
+	runner.writer.Truncate()
+	conf := runner.config
+	passed := runner.afterSuiteNode.Run(conf.ParallelNode, conf.ParallelTotal, conf.SyncHost)
+	if !passed {
+		runner.writer.DumpOut()
+	}
+	runner.reportAfterSuite(runner.afterSuiteNode.Summary())
+	return passed
+}
+
+func (runner *SpecRunner) runSpecs() bool {
+	suiteFailed := false
+	skipRemainingSpecs := false
+	for _, spec := range runner.specs.Specs() {
+		if runner.wasInterrupted() {
+			return suiteFailed
+		}
+		if skipRemainingSpecs {
+			spec.Skip()
+		}
+		runner.reportSpecWillRun(spec.Summary(runner.suiteID))
+
+		if !spec.Skipped() && !spec.Pending() {
+			runner.runningSpec = spec
+			spec.Run(runner.writer)
+			runner.runningSpec = nil
+			if spec.Failed() {
+				suiteFailed = true
+			}
+		} else if spec.Pending() && runner.config.FailOnPending {
+			suiteFailed = true
+		}
+
+		runner.reportSpecDidComplete(spec.Summary(runner.suiteID), spec.Failed())
+
+		if spec.Failed() && runner.config.FailFast {
+			skipRemainingSpecs = true
+		}
+	}
+
+	return !suiteFailed
+}
+
+func (runner *SpecRunner) CurrentSpecSummary() (*types.SpecSummary, bool) {
+	if runner.runningSpec == nil {
+		return nil, false
+	}
+
+	return runner.runningSpec.Summary(runner.suiteID), true
+}
+
+func (runner *SpecRunner) registerForInterrupts() {
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
+
+	<-c
+	signal.Stop(c)
+	runner.markInterrupted()
+	go runner.registerForHardInterrupts()
+	runner.writer.DumpOutWithHeader(`
+Received interrupt.  Emitting contents of GinkgoWriter...
+---------------------------------------------------------
+`)
+	if runner.afterSuiteNode != nil {
+		fmt.Fprint(os.Stderr, `
+---------------------------------------------------------
+Received interrupt.  Running AfterSuite...
+^C again to terminate immediately
+`)
+		runner.runAfterSuite()
+	}
+	runner.reportSuiteDidEnd(false)
+	os.Exit(1)
+}
+
+func (runner *SpecRunner) registerForHardInterrupts() {
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
+
+	<-c
+	fmt.Fprintln(os.Stderr, "\nReceived second interrupt.  Shutting down.")
+	os.Exit(1)
+}
+
+func (runner *SpecRunner) blockForeverIfInterrupted() {
+	runner.lock.Lock()
+	interrupted := runner.interrupted
+	runner.lock.Unlock()
+
+	if interrupted {
+		select {}
+	}
+}
+
+func (runner *SpecRunner) markInterrupted() {
+	runner.lock.Lock()
+	defer runner.lock.Unlock()
+	runner.interrupted = true
+}
+
+func (runner *SpecRunner) wasInterrupted() bool {
+	runner.lock.Lock()
+	defer runner.lock.Unlock()
+	return runner.interrupted
+}
+
+func (runner *SpecRunner) reportSuiteWillBegin() {
+	runner.startTime = time.Now()
+	summary := runner.summary(true)
+	for _, reporter := range runner.reporters {
+		reporter.SpecSuiteWillBegin(runner.config, summary)
+	}
+}
+
+func (runner *SpecRunner) reportBeforeSuite(summary *types.SetupSummary) {
+	for _, reporter := range runner.reporters {
+		reporter.BeforeSuiteDidRun(summary)
+	}
+}
+
+func (runner *SpecRunner) reportAfterSuite(summary *types.SetupSummary) {
+	for _, reporter := range runner.reporters {
+		reporter.AfterSuiteDidRun(summary)
+	}
+}
+
+func (runner *SpecRunner) reportSpecWillRun(summary *types.SpecSummary) {
+	runner.writer.Truncate()
+
+	for _, reporter := range runner.reporters {
+		reporter.SpecWillRun(summary)
+	}
+}
+
+func (runner *SpecRunner) reportSpecDidComplete(summary *types.SpecSummary, failed bool) {
+	for i := len(runner.reporters) - 1; i >= 1; i-- {
+		runner.reporters[i].SpecDidComplete(summary)
+	}
+
+	if failed {
+		runner.writer.DumpOut()
+	}
+
+	runner.reporters[0].SpecDidComplete(summary)
+}
+
+func (runner *SpecRunner) reportSuiteDidEnd(success bool) {
+	summary := runner.summary(success)
+	summary.RunTime = time.Since(runner.startTime)
+	for _, reporter := range runner.reporters {
+		reporter.SpecSuiteDidEnd(summary)
+	}
+}
+
+func (runner *SpecRunner) countSpecsSatisfying(filter func(ex *spec.Spec) bool) (count int) {
+	count = 0
+
+	for _, spec := range runner.specs.Specs() {
+		if filter(spec) {
+			count++
+		}
+	}
+
+	return count
+}
+
+func (runner *SpecRunner) summary(success bool) *types.SuiteSummary {
+	numberOfSpecsThatWillBeRun := runner.countSpecsSatisfying(func(ex *spec.Spec) bool {
+		return !ex.Skipped() && !ex.Pending()
+	})
+
+	numberOfPendingSpecs := runner.countSpecsSatisfying(func(ex *spec.Spec) bool {
+		return ex.Pending()
+	})
+
+	numberOfSkippedSpecs := runner.countSpecsSatisfying(func(ex *spec.Spec) bool {
+		return ex.Skipped()
+	})
+
+	numberOfPassedSpecs := runner.countSpecsSatisfying(func(ex *spec.Spec) bool {
+		return ex.Passed()
+	})
+
+	numberOfFailedSpecs := runner.countSpecsSatisfying(func(ex *spec.Spec) bool {
+		return ex.Failed()
+	})
+
+	if runner.beforeSuiteNode != nil && !runner.beforeSuiteNode.Passed() && !runner.config.DryRun {
+		numberOfFailedSpecs = numberOfSpecsThatWillBeRun
+	}
+
+	return &types.SuiteSummary{
+		SuiteDescription: runner.description,
+		SuiteSucceeded:   success,
+		SuiteID:          runner.suiteID,
+
+		NumberOfSpecsBeforeParallelization: runner.specs.NumberOfOriginalSpecs(),
+		NumberOfTotalSpecs:                 len(runner.specs.Specs()),
+		NumberOfSpecsThatWillBeRun:         numberOfSpecsThatWillBeRun,
+		NumberOfPendingSpecs:               numberOfPendingSpecs,
+		NumberOfSkippedSpecs:               numberOfSkippedSpecs,
+		NumberOfPassedSpecs:                numberOfPassedSpecs,
+		NumberOfFailedSpecs:                numberOfFailedSpecs,
+	}
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/suite/suite.go b/vendor/github.com/onsi/ginkgo/internal/suite/suite.go
new file mode 100644
index 0000000..a054602
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/suite/suite.go
@@ -0,0 +1,171 @@
+package suite
+
+import (
+	"math/rand"
+	"time"
+
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/internal/containernode"
+	"github.com/onsi/ginkgo/internal/failer"
+	"github.com/onsi/ginkgo/internal/leafnodes"
+	"github.com/onsi/ginkgo/internal/spec"
+	"github.com/onsi/ginkgo/internal/specrunner"
+	"github.com/onsi/ginkgo/internal/writer"
+	"github.com/onsi/ginkgo/reporters"
+	"github.com/onsi/ginkgo/types"
+)
+
+type ginkgoTestingT interface {
+	Fail()
+}
+
+type Suite struct {
+	topLevelContainer *containernode.ContainerNode
+	currentContainer  *containernode.ContainerNode
+	containerIndex    int
+	beforeSuiteNode   leafnodes.SuiteNode
+	afterSuiteNode    leafnodes.SuiteNode
+	runner            *specrunner.SpecRunner
+	failer            *failer.Failer
+	running           bool
+}
+
+func New(failer *failer.Failer) *Suite {
+	topLevelContainer := containernode.New("[Top Level]", types.FlagTypeNone, types.CodeLocation{})
+
+	return &Suite{
+		topLevelContainer: topLevelContainer,
+		currentContainer:  topLevelContainer,
+		failer:            failer,
+		containerIndex:    1,
+	}
+}
+
+func (suite *Suite) Run(t ginkgoTestingT, description string, reporters []reporters.Reporter, writer writer.WriterInterface, config config.GinkgoConfigType) (bool, bool) {
+	if config.ParallelTotal < 1 {
+		panic("ginkgo.parallel.total must be >= 1")
+	}
+
+	if config.ParallelNode > config.ParallelTotal || config.ParallelNode < 1 {
+		panic("ginkgo.parallel.node is one-indexed and must be <= ginkgo.parallel.total")
+	}
+
+	r := rand.New(rand.NewSource(config.RandomSeed))
+	suite.topLevelContainer.Shuffle(r)
+	specs := suite.generateSpecs(description, config)
+	suite.runner = specrunner.New(description, suite.beforeSuiteNode, specs, suite.afterSuiteNode, reporters, writer, config)
+
+	suite.running = true
+	success := suite.runner.Run()
+	if !success {
+		t.Fail()
+	}
+	return success, specs.HasProgrammaticFocus()
+}
+
+func (suite *Suite) generateSpecs(description string, config config.GinkgoConfigType) *spec.Specs {
+	specsSlice := []*spec.Spec{}
+	suite.topLevelContainer.BackPropagateProgrammaticFocus()
+	for _, collatedNodes := range suite.topLevelContainer.Collate() {
+		specsSlice = append(specsSlice, spec.New(collatedNodes.Subject, collatedNodes.Containers, config.EmitSpecProgress))
+	}
+
+	specs := spec.NewSpecs(specsSlice)
+
+	if config.RandomizeAllSpecs {
+		specs.Shuffle(rand.New(rand.NewSource(config.RandomSeed)))
+	}
+
+	specs.ApplyFocus(description, config.FocusString, config.SkipString)
+
+	if config.SkipMeasurements {
+		specs.SkipMeasurements()
+	}
+
+	if config.ParallelTotal > 1 {
+		specs.TrimForParallelization(config.ParallelTotal, config.ParallelNode)
+	}
+
+	return specs
+}
+
+func (suite *Suite) CurrentRunningSpecSummary() (*types.SpecSummary, bool) {
+	return suite.runner.CurrentSpecSummary()
+}
+
+func (suite *Suite) SetBeforeSuiteNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration) {
+	if suite.beforeSuiteNode != nil {
+		panic("You may only call BeforeSuite once!")
+	}
+	suite.beforeSuiteNode = leafnodes.NewBeforeSuiteNode(body, codeLocation, timeout, suite.failer)
+}
+
+func (suite *Suite) SetAfterSuiteNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration) {
+	if suite.afterSuiteNode != nil {
+		panic("You may only call AfterSuite once!")
+	}
+	suite.afterSuiteNode = leafnodes.NewAfterSuiteNode(body, codeLocation, timeout, suite.failer)
+}
+
+func (suite *Suite) SetSynchronizedBeforeSuiteNode(bodyA interface{}, bodyB interface{}, codeLocation types.CodeLocation, timeout time.Duration) {
+	if suite.beforeSuiteNode != nil {
+		panic("You may only call BeforeSuite once!")
+	}
+	suite.beforeSuiteNode = leafnodes.NewSynchronizedBeforeSuiteNode(bodyA, bodyB, codeLocation, timeout, suite.failer)
+}
+
+func (suite *Suite) SetSynchronizedAfterSuiteNode(bodyA interface{}, bodyB interface{}, codeLocation types.CodeLocation, timeout time.Duration) {
+	if suite.afterSuiteNode != nil {
+		panic("You may only call AfterSuite once!")
+	}
+	suite.afterSuiteNode = leafnodes.NewSynchronizedAfterSuiteNode(bodyA, bodyB, codeLocation, timeout, suite.failer)
+}
+
+func (suite *Suite) PushContainerNode(text string, body func(), flag types.FlagType, codeLocation types.CodeLocation) {
+	container := containernode.New(text, flag, codeLocation)
+	suite.currentContainer.PushContainerNode(container)
+
+	previousContainer := suite.currentContainer
+	suite.currentContainer = container
+	suite.containerIndex++
+
+	body()
+
+	suite.containerIndex--
+	suite.currentContainer = previousContainer
+}
+
+func (suite *Suite) PushItNode(text string, body interface{}, flag types.FlagType, codeLocation types.CodeLocation, timeout time.Duration) {
+	if suite.running {
+		suite.failer.Fail("You may only call It from within a Describe or Context", codeLocation)
+	}
+	suite.currentContainer.PushSubjectNode(leafnodes.NewItNode(text, body, flag, codeLocation, timeout, suite.failer, suite.containerIndex))
+}
+
+func (suite *Suite) PushMeasureNode(text string, body interface{}, flag types.FlagType, codeLocation types.CodeLocation, samples int) {
+	if suite.running {
+		suite.failer.Fail("You may only call Measure from within a Describe or Context", codeLocation)
+	}
+	suite.currentContainer.PushSubjectNode(leafnodes.NewMeasureNode(text, body, flag, codeLocation, samples, suite.failer, suite.containerIndex))
+}
+
+func (suite *Suite) PushBeforeEachNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration) {
+	if suite.running {
+		suite.failer.Fail("You may only call BeforeEach from within a Describe or Context", codeLocation)
+	}
+	suite.currentContainer.PushSetupNode(leafnodes.NewBeforeEachNode(body, codeLocation, timeout, suite.failer, suite.containerIndex))
+}
+
+func (suite *Suite) PushJustBeforeEachNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration) {
+	if suite.running {
+		suite.failer.Fail("You may only call JustBeforeEach from within a Describe or Context", codeLocation)
+	}
+	suite.currentContainer.PushSetupNode(leafnodes.NewJustBeforeEachNode(body, codeLocation, timeout, suite.failer, suite.containerIndex))
+}
+
+func (suite *Suite) PushAfterEachNode(body interface{}, codeLocation types.CodeLocation, timeout time.Duration) {
+	if suite.running {
+		suite.failer.Fail("You may only call AfterEach from within a Describe or Context", codeLocation)
+	}
+	suite.currentContainer.PushSetupNode(leafnodes.NewAfterEachNode(body, codeLocation, timeout, suite.failer, suite.containerIndex))
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/testingtproxy/testing_t_proxy.go b/vendor/github.com/onsi/ginkgo/internal/testingtproxy/testing_t_proxy.go
new file mode 100644
index 0000000..a2b9af8
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/testingtproxy/testing_t_proxy.go
@@ -0,0 +1,76 @@
+package testingtproxy
+
+import (
+	"fmt"
+	"io"
+)
+
+type failFunc func(message string, callerSkip ...int)
+
+func New(writer io.Writer, fail failFunc, offset int) *ginkgoTestingTProxy {
+	return &ginkgoTestingTProxy{
+		fail:   fail,
+		offset: offset,
+		writer: writer,
+	}
+}
+
+type ginkgoTestingTProxy struct {
+	fail   failFunc
+	offset int
+	writer io.Writer
+}
+
+func (t *ginkgoTestingTProxy) Error(args ...interface{}) {
+	t.fail(fmt.Sprintln(args...), t.offset)
+}
+
+func (t *ginkgoTestingTProxy) Errorf(format string, args ...interface{}) {
+	t.fail(fmt.Sprintf(format, args...), t.offset)
+}
+
+func (t *ginkgoTestingTProxy) Fail() {
+	t.fail("failed", t.offset)
+}
+
+func (t *ginkgoTestingTProxy) FailNow() {
+	t.fail("failed", t.offset)
+}
+
+func (t *ginkgoTestingTProxy) Fatal(args ...interface{}) {
+	t.fail(fmt.Sprintln(args...), t.offset)
+}
+
+func (t *ginkgoTestingTProxy) Fatalf(format string, args ...interface{}) {
+	t.fail(fmt.Sprintf(format, args...), t.offset)
+}
+
+func (t *ginkgoTestingTProxy) Log(args ...interface{}) {
+	fmt.Fprintln(t.writer, args...)
+}
+
+func (t *ginkgoTestingTProxy) Logf(format string, args ...interface{}) {
+	fmt.Fprintf(t.writer, format, args...)
+}
+
+func (t *ginkgoTestingTProxy) Failed() bool {
+	return false
+}
+
+func (t *ginkgoTestingTProxy) Parallel() {
+}
+
+func (t *ginkgoTestingTProxy) Skip(args ...interface{}) {
+	fmt.Println(args...)
+}
+
+func (t *ginkgoTestingTProxy) Skipf(format string, args ...interface{}) {
+	fmt.Printf(format, args...)
+}
+
+func (t *ginkgoTestingTProxy) SkipNow() {
+}
+
+func (t *ginkgoTestingTProxy) Skipped() bool {
+	return false
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/writer/fake_writer.go b/vendor/github.com/onsi/ginkgo/internal/writer/fake_writer.go
new file mode 100644
index 0000000..ac6540f
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/writer/fake_writer.go
@@ -0,0 +1,31 @@
+package writer
+
+type FakeGinkgoWriter struct {
+	EventStream []string
+}
+
+func NewFake() *FakeGinkgoWriter {
+	return &FakeGinkgoWriter{
+		EventStream: []string{},
+	}
+}
+
+func (writer *FakeGinkgoWriter) AddEvent(event string) {
+	writer.EventStream = append(writer.EventStream, event)
+}
+
+func (writer *FakeGinkgoWriter) Truncate() {
+	writer.EventStream = append(writer.EventStream, "TRUNCATE")
+}
+
+func (writer *FakeGinkgoWriter) DumpOut() {
+	writer.EventStream = append(writer.EventStream, "DUMP")
+}
+
+func (writer *FakeGinkgoWriter) DumpOutWithHeader(header string) {
+	writer.EventStream = append(writer.EventStream, "DUMP_WITH_HEADER: "+header)
+}
+
+func (writer *FakeGinkgoWriter) Write(data []byte) (n int, err error) {
+	return 0, nil
+}
diff --git a/vendor/github.com/onsi/ginkgo/internal/writer/writer.go b/vendor/github.com/onsi/ginkgo/internal/writer/writer.go
new file mode 100644
index 0000000..7678fc1
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/internal/writer/writer.go
@@ -0,0 +1,71 @@
+package writer
+
+import (
+	"bytes"
+	"io"
+	"sync"
+)
+
+type WriterInterface interface {
+	io.Writer
+
+	Truncate()
+	DumpOut()
+	DumpOutWithHeader(header string)
+}
+
+type Writer struct {
+	buffer    *bytes.Buffer
+	outWriter io.Writer
+	lock      *sync.Mutex
+	stream    bool
+}
+
+func New(outWriter io.Writer) *Writer {
+	return &Writer{
+		buffer:    &bytes.Buffer{},
+		lock:      &sync.Mutex{},
+		outWriter: outWriter,
+		stream:    true,
+	}
+}
+
+func (w *Writer) SetStream(stream bool) {
+	w.lock.Lock()
+	defer w.lock.Unlock()
+	w.stream = stream
+}
+
+func (w *Writer) Write(b []byte) (n int, err error) {
+	w.lock.Lock()
+	defer w.lock.Unlock()
+
+	if w.stream {
+		return w.outWriter.Write(b)
+	} else {
+		return w.buffer.Write(b)
+	}
+}
+
+func (w *Writer) Truncate() {
+	w.lock.Lock()
+	defer w.lock.Unlock()
+	w.buffer.Reset()
+}
+
+func (w *Writer) DumpOut() {
+	w.lock.Lock()
+	defer w.lock.Unlock()
+	if !w.stream {
+		w.buffer.WriteTo(w.outWriter)
+	}
+}
+
+func (w *Writer) DumpOutWithHeader(header string) {
+	w.lock.Lock()
+	defer w.lock.Unlock()
+	if !w.stream && w.buffer.Len() > 0 {
+		w.outWriter.Write([]byte(header))
+		w.buffer.WriteTo(w.outWriter)
+	}
+}
diff --git a/vendor/github.com/onsi/ginkgo/reporters/default_reporter.go b/vendor/github.com/onsi/ginkgo/reporters/default_reporter.go
new file mode 100644
index 0000000..044d2df
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/reporters/default_reporter.go
@@ -0,0 +1,83 @@
+/*
+Ginkgo's Default Reporter
+
+A number of command line flags are available to tweak Ginkgo's default output.
+
+These are documented [here](http://onsi.github.io/ginkgo/#running_tests)
+*/
+package reporters
+
+import (
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/reporters/stenographer"
+	"github.com/onsi/ginkgo/types"
+)
+
+type DefaultReporter struct {
+	config        config.DefaultReporterConfigType
+	stenographer  stenographer.Stenographer
+	specSummaries []*types.SpecSummary
+}
+
+func NewDefaultReporter(config config.DefaultReporterConfigType, stenographer stenographer.Stenographer) *DefaultReporter {
+	return &DefaultReporter{
+		config:       config,
+		stenographer: stenographer,
+	}
+}
+
+func (reporter *DefaultReporter) SpecSuiteWillBegin(config config.GinkgoConfigType, summary *types.SuiteSummary) {
+	reporter.stenographer.AnnounceSuite(summary.SuiteDescription, config.RandomSeed, config.RandomizeAllSpecs, reporter.config.Succinct)
+	if config.ParallelTotal > 1 {
+		reporter.stenographer.AnnounceParallelRun(config.ParallelNode, config.ParallelTotal, summary.NumberOfTotalSpecs, summary.NumberOfSpecsBeforeParallelization, reporter.config.Succinct)
+	}
+	reporter.stenographer.AnnounceNumberOfSpecs(summary.NumberOfSpecsThatWillBeRun, summary.NumberOfTotalSpecs, reporter.config.Succinct)
+}
+
+func (reporter *DefaultReporter) BeforeSuiteDidRun(setupSummary *types.SetupSummary) {
+	if setupSummary.State != types.SpecStatePassed {
+		reporter.stenographer.AnnounceBeforeSuiteFailure(setupSummary, reporter.config.Succinct, reporter.config.FullTrace)
+	}
+}
+
+func (reporter *DefaultReporter) AfterSuiteDidRun(setupSummary *types.SetupSummary) {
+	if setupSummary.State != types.SpecStatePassed {
+		reporter.stenographer.AnnounceAfterSuiteFailure(setupSummary, reporter.config.Succinct, reporter.config.FullTrace)
+	}
+}
+
+func (reporter *DefaultReporter) SpecWillRun(specSummary *types.SpecSummary) {
+	if reporter.config.Verbose && !reporter.config.Succinct && specSummary.State != types.SpecStatePending && specSummary.State != types.SpecStateSkipped {
+		reporter.stenographer.AnnounceSpecWillRun(specSummary)
+	}
+}
+
+func (reporter *DefaultReporter) SpecDidComplete(specSummary *types.SpecSummary) {
+	switch specSummary.State {
+	case types.SpecStatePassed:
+		if specSummary.IsMeasurement {
+			reporter.stenographer.AnnounceSuccesfulMeasurement(specSummary, reporter.config.Succinct)
+		} else if specSummary.RunTime.Seconds() >= reporter.config.SlowSpecThreshold {
+			reporter.stenographer.AnnounceSuccesfulSlowSpec(specSummary, reporter.config.Succinct)
+		} else {
+			reporter.stenographer.AnnounceSuccesfulSpec(specSummary)
+		}
+	case types.SpecStatePending:
+		reporter.stenographer.AnnouncePendingSpec(specSummary, reporter.config.NoisyPendings && !reporter.config.Succinct)
+	case types.SpecStateSkipped:
+		reporter.stenographer.AnnounceSkippedSpec(specSummary, reporter.config.Succinct, reporter.config.FullTrace)
+	case types.SpecStateTimedOut:
+		reporter.stenographer.AnnounceSpecTimedOut(specSummary, reporter.config.Succinct, reporter.config.FullTrace)
+	case types.SpecStatePanicked:
+		reporter.stenographer.AnnounceSpecPanicked(specSummary, reporter.config.Succinct, reporter.config.FullTrace)
+	case types.SpecStateFailed:
+		reporter.stenographer.AnnounceSpecFailed(specSummary, reporter.config.Succinct, reporter.config.FullTrace)
+	}
+
+	reporter.specSummaries = append(reporter.specSummaries, specSummary)
+}
+
+func (reporter *DefaultReporter) SpecSuiteDidEnd(summary *types.SuiteSummary) {
+	reporter.stenographer.SummarizeFailures(reporter.specSummaries)
+	reporter.stenographer.AnnounceSpecRunCompletion(summary, reporter.config.Succinct)
+}
diff --git a/vendor/github.com/onsi/ginkgo/reporters/fake_reporter.go b/vendor/github.com/onsi/ginkgo/reporters/fake_reporter.go
new file mode 100644
index 0000000..27db479
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/reporters/fake_reporter.go
@@ -0,0 +1,59 @@
+package reporters
+
+import (
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/types"
+)
+
+//FakeReporter is useful for testing purposes
+type FakeReporter struct {
+	Config config.GinkgoConfigType
+
+	BeginSummary         *types.SuiteSummary
+	BeforeSuiteSummary   *types.SetupSummary
+	SpecWillRunSummaries []*types.SpecSummary
+	SpecSummaries        []*types.SpecSummary
+	AfterSuiteSummary    *types.SetupSummary
+	EndSummary           *types.SuiteSummary
+
+	SpecWillRunStub     func(specSummary *types.SpecSummary)
+	SpecDidCompleteStub func(specSummary *types.SpecSummary)
+}
+
+func NewFakeReporter() *FakeReporter {
+	return &FakeReporter{
+		SpecWillRunSummaries: make([]*types.SpecSummary, 0),
+		SpecSummaries:        make([]*types.SpecSummary, 0),
+	}
+}
+
+func (fakeR *FakeReporter) SpecSuiteWillBegin(config config.GinkgoConfigType, summary *types.SuiteSummary) {
+	fakeR.Config = config
+	fakeR.BeginSummary = summary
+}
+
+func (fakeR *FakeReporter) BeforeSuiteDidRun(setupSummary *types.SetupSummary) {
+	fakeR.BeforeSuiteSummary = setupSummary
+}
+
+func (fakeR *FakeReporter) SpecWillRun(specSummary *types.SpecSummary) {
+	if fakeR.SpecWillRunStub != nil {
+		fakeR.SpecWillRunStub(specSummary)
+	}
+	fakeR.SpecWillRunSummaries = append(fakeR.SpecWillRunSummaries, specSummary)
+}
+
+func (fakeR *FakeReporter) SpecDidComplete(specSummary *types.SpecSummary) {
+	if fakeR.SpecDidCompleteStub != nil {
+		fakeR.SpecDidCompleteStub(specSummary)
+	}
+	fakeR.SpecSummaries = append(fakeR.SpecSummaries, specSummary)
+}
+
+func (fakeR *FakeReporter) AfterSuiteDidRun(setupSummary *types.SetupSummary) {
+	fakeR.AfterSuiteSummary = setupSummary
+}
+
+func (fakeR *FakeReporter) SpecSuiteDidEnd(summary *types.SuiteSummary) {
+	fakeR.EndSummary = summary
+}
diff --git a/vendor/github.com/onsi/ginkgo/reporters/junit_reporter.go b/vendor/github.com/onsi/ginkgo/reporters/junit_reporter.go
new file mode 100644
index 0000000..278a88e
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/reporters/junit_reporter.go
@@ -0,0 +1,139 @@
+/*
+
+JUnit XML Reporter for Ginkgo
+
+For usage instructions: http://onsi.github.io/ginkgo/#generating_junit_xml_output
+
+*/
+
+package reporters
+
+import (
+	"encoding/xml"
+	"fmt"
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/types"
+	"os"
+	"strings"
+)
+
+type JUnitTestSuite struct {
+	XMLName   xml.Name        `xml:"testsuite"`
+	TestCases []JUnitTestCase `xml:"testcase"`
+	Tests     int             `xml:"tests,attr"`
+	Failures  int             `xml:"failures,attr"`
+	Time      float64         `xml:"time,attr"`
+}
+
+type JUnitTestCase struct {
+	Name           string               `xml:"name,attr"`
+	ClassName      string               `xml:"classname,attr"`
+	FailureMessage *JUnitFailureMessage `xml:"failure,omitempty"`
+	Skipped        *JUnitSkipped        `xml:"skipped,omitempty"`
+	Time           float64              `xml:"time,attr"`
+}
+
+type JUnitFailureMessage struct {
+	Type    string `xml:"type,attr"`
+	Message string `xml:",chardata"`
+}
+
+type JUnitSkipped struct {
+	XMLName xml.Name `xml:"skipped"`
+}
+
+type JUnitReporter struct {
+	suite         JUnitTestSuite
+	filename      string
+	testSuiteName string
+}
+
+//NewJUnitReporter creates a new JUnit XML reporter.  The XML will be stored in the passed in filename.
+func NewJUnitReporter(filename string) *JUnitReporter {
+	return &JUnitReporter{
+		filename: filename,
+	}
+}
+
+func (reporter *JUnitReporter) SpecSuiteWillBegin(config config.GinkgoConfigType, summary *types.SuiteSummary) {
+	reporter.suite = JUnitTestSuite{
+		Tests:     summary.NumberOfSpecsThatWillBeRun,
+		TestCases: []JUnitTestCase{},
+	}
+	reporter.testSuiteName = summary.SuiteDescription
+}
+
+func (reporter *JUnitReporter) SpecWillRun(specSummary *types.SpecSummary) {
+}
+
+func (reporter *JUnitReporter) BeforeSuiteDidRun(setupSummary *types.SetupSummary) {
+	reporter.handleSetupSummary("BeforeSuite", setupSummary)
+}
+
+func (reporter *JUnitReporter) AfterSuiteDidRun(setupSummary *types.SetupSummary) {
+	reporter.handleSetupSummary("AfterSuite", setupSummary)
+}
+
+func (reporter *JUnitReporter) handleSetupSummary(name string, setupSummary *types.SetupSummary) {
+	if setupSummary.State != types.SpecStatePassed {
+		testCase := JUnitTestCase{
+			Name:      name,
+			ClassName: reporter.testSuiteName,
+		}
+
+		testCase.FailureMessage = &JUnitFailureMessage{
+			Type:    reporter.failureTypeForState(setupSummary.State),
+			Message: fmt.Sprintf("%s\n%s", setupSummary.Failure.ComponentCodeLocation.String(), setupSummary.Failure.Message),
+		}
+		testCase.Time = setupSummary.RunTime.Seconds()
+		reporter.suite.TestCases = append(reporter.suite.TestCases, testCase)
+	}
+}
+
+func (reporter *JUnitReporter) SpecDidComplete(specSummary *types.SpecSummary) {
+	testCase := JUnitTestCase{
+		Name:      strings.Join(specSummary.ComponentTexts[1:], " "),
+		ClassName: reporter.testSuiteName,
+	}
+	if specSummary.State == types.SpecStateFailed || specSummary.State == types.SpecStateTimedOut || specSummary.State == types.SpecStatePanicked {
+		testCase.FailureMessage = &JUnitFailureMessage{
+			Type:    reporter.failureTypeForState(specSummary.State),
+			Message: fmt.Sprintf("%s\n%s", specSummary.Failure.ComponentCodeLocation.String(), specSummary.Failure.Message),
+		}
+	}
+	if specSummary.State == types.SpecStateSkipped || specSummary.State == types.SpecStatePending {
+		testCase.Skipped = &JUnitSkipped{}
+	}
+	testCase.Time = specSummary.RunTime.Seconds()
+	reporter.suite.TestCases = append(reporter.suite.TestCases, testCase)
+}
+
+func (reporter *JUnitReporter) SpecSuiteDidEnd(summary *types.SuiteSummary) {
+	reporter.suite.Time = summary.RunTime.Seconds()
+	reporter.suite.Failures = summary.NumberOfFailedSpecs
+	file, err := os.Create(reporter.filename)
+	if err != nil {
+		fmt.Printf("Failed to create JUnit report file: %s\n\t%s", reporter.filename, err.Error())
+	}
+	defer file.Close()
+	file.WriteString(xml.Header)
+	encoder := xml.NewEncoder(file)
+	encoder.Indent("  ", "    ")
+	err = encoder.Encode(reporter.suite)
+	if err != nil {
+		fmt.Printf("Failed to generate JUnit report\n\t%s", err.Error())
+	}
+}
+
+func (reporter *JUnitReporter) failureTypeForState(state types.SpecState) string {
+	switch state {
+	case types.SpecStateFailed:
+		return "Failure"
+	case types.SpecStateTimedOut:
+		return "Timeout"
+	case types.SpecStatePanicked:
+		return "Panic"
+	default:
+		return ""
+	}
+}
diff --git a/vendor/github.com/onsi/ginkgo/reporters/reporter.go b/vendor/github.com/onsi/ginkgo/reporters/reporter.go
new file mode 100644
index 0000000..348b9df
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/reporters/reporter.go
@@ -0,0 +1,15 @@
+package reporters
+
+import (
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/types"
+)
+
+type Reporter interface {
+	SpecSuiteWillBegin(config config.GinkgoConfigType, summary *types.SuiteSummary)
+	BeforeSuiteDidRun(setupSummary *types.SetupSummary)
+	SpecWillRun(specSummary *types.SpecSummary)
+	SpecDidComplete(specSummary *types.SpecSummary)
+	AfterSuiteDidRun(setupSummary *types.SetupSummary)
+	SpecSuiteDidEnd(summary *types.SuiteSummary)
+}
diff --git a/vendor/github.com/onsi/ginkgo/reporters/stenographer/console_logging.go b/vendor/github.com/onsi/ginkgo/reporters/stenographer/console_logging.go
new file mode 100644
index 0000000..ce5433a
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/reporters/stenographer/console_logging.go
@@ -0,0 +1,64 @@
+package stenographer
+
+import (
+	"fmt"
+	"strings"
+)
+
+func (s *consoleStenographer) colorize(colorCode string, format string, args ...interface{}) string {
+	var out string
+
+	if len(args) > 0 {
+		out = fmt.Sprintf(format, args...)
+	} else {
+		out = format
+	}
+
+	if s.color {
+		return fmt.Sprintf("%s%s%s", colorCode, out, defaultStyle)
+	} else {
+		return out
+	}
+}
+
+func (s *consoleStenographer) printBanner(text string, bannerCharacter string) {
+	fmt.Println(text)
+	fmt.Println(strings.Repeat(bannerCharacter, len(text)))
+}
+
+func (s *consoleStenographer) printNewLine() {
+	fmt.Println("")
+}
+
+func (s *consoleStenographer) printDelimiter() {
+	fmt.Println(s.colorize(grayColor, "%s", strings.Repeat("-", 30)))
+}
+
+func (s *consoleStenographer) print(indentation int, format string, args ...interface{}) {
+	fmt.Print(s.indent(indentation, format, args...))
+}
+
+func (s *consoleStenographer) println(indentation int, format string, args ...interface{}) {
+	fmt.Println(s.indent(indentation, format, args...))
+}
+
+func (s *consoleStenographer) indent(indentation int, format string, args ...interface{}) string {
+	var text string
+
+	if len(args) > 0 {
+		text = fmt.Sprintf(format, args...)
+	} else {
+		text = format
+	}
+
+	stringArray := strings.Split(text, "\n")
+	padding := ""
+	if indentation >= 0 {
+		padding = strings.Repeat("  ", indentation)
+	}
+	for i, s := range stringArray {
+		stringArray[i] = fmt.Sprintf("%s%s", padding, s)
+	}
+
+	return strings.Join(stringArray, "\n")
+}
diff --git a/vendor/github.com/onsi/ginkgo/reporters/stenographer/fake_stenographer.go b/vendor/github.com/onsi/ginkgo/reporters/stenographer/fake_stenographer.go
new file mode 100644
index 0000000..1ff6104
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/reporters/stenographer/fake_stenographer.go
@@ -0,0 +1,138 @@
+package stenographer
+
+import (
+	"sync"
+
+	"github.com/onsi/ginkgo/types"
+)
+
+func NewFakeStenographerCall(method string, args ...interface{}) FakeStenographerCall {
+	return FakeStenographerCall{
+		Method: method,
+		Args:   args,
+	}
+}
+
+type FakeStenographer struct {
+	calls []FakeStenographerCall
+	lock  *sync.Mutex
+}
+
+type FakeStenographerCall struct {
+	Method string
+	Args   []interface{}
+}
+
+func NewFakeStenographer() *FakeStenographer {
+	stenographer := &FakeStenographer{
+		lock: &sync.Mutex{},
+	}
+	stenographer.Reset()
+	return stenographer
+}
+
+func (stenographer *FakeStenographer) Calls() []FakeStenographerCall {
+	stenographer.lock.Lock()
+	defer stenographer.lock.Unlock()
+
+	return stenographer.calls
+}
+
+func (stenographer *FakeStenographer) Reset() {
+	stenographer.lock.Lock()
+	defer stenographer.lock.Unlock()
+
+	stenographer.calls = make([]FakeStenographerCall, 0)
+}
+
+func (stenographer *FakeStenographer) CallsTo(method string) []FakeStenographerCall {
+	stenographer.lock.Lock()
+	defer stenographer.lock.Unlock()
+
+	results := make([]FakeStenographerCall, 0)
+	for _, call := range stenographer.calls {
+		if call.Method == method {
+			results = append(results, call)
+		}
+	}
+
+	return results
+}
+
+func (stenographer *FakeStenographer) registerCall(method string, args ...interface{}) {
+	stenographer.lock.Lock()
+	defer stenographer.lock.Unlock()
+
+	stenographer.calls = append(stenographer.calls, NewFakeStenographerCall(method, args...))
+}
+
+func (stenographer *FakeStenographer) AnnounceSuite(description string, randomSeed int64, randomizingAll bool, succinct bool) {
+	stenographer.registerCall("AnnounceSuite", description, randomSeed, randomizingAll, succinct)
+}
+
+func (stenographer *FakeStenographer) AnnounceAggregatedParallelRun(nodes int, succinct bool) {
+	stenographer.registerCall("AnnounceAggregatedParallelRun", nodes, succinct)
+}
+
+func (stenographer *FakeStenographer) AnnounceParallelRun(node int, nodes int, specsToRun int, totalSpecs int, succinct bool) {
+	stenographer.registerCall("AnnounceParallelRun", node, nodes, specsToRun, totalSpecs, succinct)
+}
+
+func (stenographer *FakeStenographer) AnnounceNumberOfSpecs(specsToRun int, total int, succinct bool) {
+	stenographer.registerCall("AnnounceNumberOfSpecs", specsToRun, total, succinct)
+}
+
+func (stenographer *FakeStenographer) AnnounceSpecRunCompletion(summary *types.SuiteSummary, succinct bool) {
+	stenographer.registerCall("AnnounceSpecRunCompletion", summary, succinct)
+}
+
+func (stenographer *FakeStenographer) AnnounceSpecWillRun(spec *types.SpecSummary) {
+	stenographer.registerCall("AnnounceSpecWillRun", spec)
+}
+
+func (stenographer *FakeStenographer) AnnounceBeforeSuiteFailure(summary *types.SetupSummary, succinct bool, fullTrace bool) {
+	stenographer.registerCall("AnnounceBeforeSuiteFailure", summary, succinct, fullTrace)
+}
+
+func (stenographer *FakeStenographer) AnnounceAfterSuiteFailure(summary *types.SetupSummary, succinct bool, fullTrace bool) {
+	stenographer.registerCall("AnnounceAfterSuiteFailure", summary, succinct, fullTrace)
+}
+func (stenographer *FakeStenographer) AnnounceCapturedOutput(output string) {
+	stenographer.registerCall("AnnounceCapturedOutput", output)
+}
+
+func (stenographer *FakeStenographer) AnnounceSuccesfulSpec(spec *types.SpecSummary) {
+	stenographer.registerCall("AnnounceSuccesfulSpec", spec)
+}
+
+func (stenographer *FakeStenographer) AnnounceSuccesfulSlowSpec(spec *types.SpecSummary, succinct bool) {
+	stenographer.registerCall("AnnounceSuccesfulSlowSpec", spec, succinct)
+}
+
+func (stenographer *FakeStenographer) AnnounceSuccesfulMeasurement(spec *types.SpecSummary, succinct bool) {
+	stenographer.registerCall("AnnounceSuccesfulMeasurement", spec, succinct)
+}
+
+func (stenographer *FakeStenographer) AnnouncePendingSpec(spec *types.SpecSummary, noisy bool) {
+	stenographer.registerCall("AnnouncePendingSpec", spec, noisy)
+}
+
+func (stenographer *FakeStenographer) AnnounceSkippedSpec(spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	stenographer.registerCall("AnnounceSkippedSpec", spec, succinct, fullTrace)
+}
+
+func (stenographer *FakeStenographer) AnnounceSpecTimedOut(spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	stenographer.registerCall("AnnounceSpecTimedOut", spec, succinct, fullTrace)
+}
+
+func (stenographer *FakeStenographer) AnnounceSpecPanicked(spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	stenographer.registerCall("AnnounceSpecPanicked", spec, succinct, fullTrace)
+}
+
+func (stenographer *FakeStenographer) AnnounceSpecFailed(spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	stenographer.registerCall("AnnounceSpecFailed", spec, succinct, fullTrace)
+}
+
+func (stenographer *FakeStenographer) SummarizeFailures(summaries []*types.SpecSummary) {
+	stenographer.registerCall("SummarizeFailures", summaries)
+}
diff --git a/vendor/github.com/onsi/ginkgo/reporters/stenographer/stenographer.go b/vendor/github.com/onsi/ginkgo/reporters/stenographer/stenographer.go
new file mode 100644
index 0000000..eeb5cbb
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/reporters/stenographer/stenographer.go
@@ -0,0 +1,542 @@
+/*
+The stenographer is used by Ginkgo's reporters to generate output.
+
+Move along, nothing to see here.
+*/
+
+package stenographer
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/onsi/ginkgo/types"
+)
+
+const defaultStyle = "\x1b[0m"
+const boldStyle = "\x1b[1m"
+const redColor = "\x1b[91m"
+const greenColor = "\x1b[32m"
+const yellowColor = "\x1b[33m"
+const cyanColor = "\x1b[36m"
+const grayColor = "\x1b[90m"
+const lightGrayColor = "\x1b[37m"
+
+type cursorStateType int
+
+const (
+	cursorStateTop cursorStateType = iota
+	cursorStateStreaming
+	cursorStateMidBlock
+	cursorStateEndBlock
+)
+
+type Stenographer interface {
+	AnnounceSuite(description string, randomSeed int64, randomizingAll bool, succinct bool)
+	AnnounceAggregatedParallelRun(nodes int, succinct bool)
+	AnnounceParallelRun(node int, nodes int, specsToRun int, totalSpecs int, succinct bool)
+	AnnounceNumberOfSpecs(specsToRun int, total int, succinct bool)
+	AnnounceSpecRunCompletion(summary *types.SuiteSummary, succinct bool)
+
+	AnnounceSpecWillRun(spec *types.SpecSummary)
+	AnnounceBeforeSuiteFailure(summary *types.SetupSummary, succinct bool, fullTrace bool)
+	AnnounceAfterSuiteFailure(summary *types.SetupSummary, succinct bool, fullTrace bool)
+
+	AnnounceCapturedOutput(output string)
+
+	AnnounceSuccesfulSpec(spec *types.SpecSummary)
+	AnnounceSuccesfulSlowSpec(spec *types.SpecSummary, succinct bool)
+	AnnounceSuccesfulMeasurement(spec *types.SpecSummary, succinct bool)
+
+	AnnouncePendingSpec(spec *types.SpecSummary, noisy bool)
+	AnnounceSkippedSpec(spec *types.SpecSummary, succinct bool, fullTrace bool)
+
+	AnnounceSpecTimedOut(spec *types.SpecSummary, succinct bool, fullTrace bool)
+	AnnounceSpecPanicked(spec *types.SpecSummary, succinct bool, fullTrace bool)
+	AnnounceSpecFailed(spec *types.SpecSummary, succinct bool, fullTrace bool)
+
+	SummarizeFailures(summaries []*types.SpecSummary)
+}
+
+func New(color bool) Stenographer {
+	return &consoleStenographer{
+		color:       color,
+		cursorState: cursorStateTop,
+	}
+}
+
+type consoleStenographer struct {
+	color       bool
+	cursorState cursorStateType
+}
+
+var alternatingColors = []string{defaultStyle, grayColor}
+
+func (s *consoleStenographer) AnnounceSuite(description string, randomSeed int64, randomizingAll bool, succinct bool) {
+	if succinct {
+		s.print(0, "[%d] %s ", randomSeed, s.colorize(boldStyle, description))
+		return
+	}
+	s.printBanner(fmt.Sprintf("Running Suite: %s", description), "=")
+	s.print(0, "Random Seed: %s", s.colorize(boldStyle, "%d", randomSeed))
+	if randomizingAll {
+		s.print(0, " - Will randomize all specs")
+	}
+	s.printNewLine()
+}
+
+func (s *consoleStenographer) AnnounceParallelRun(node int, nodes int, specsToRun int, totalSpecs int, succinct bool) {
+	if succinct {
+		s.print(0, "- node #%d ", node)
+		return
+	}
+	s.println(0,
+		"Parallel test node %s/%s. Assigned %s of %s specs.",
+		s.colorize(boldStyle, "%d", node),
+		s.colorize(boldStyle, "%d", nodes),
+		s.colorize(boldStyle, "%d", specsToRun),
+		s.colorize(boldStyle, "%d", totalSpecs),
+	)
+	s.printNewLine()
+}
+
+func (s *consoleStenographer) AnnounceAggregatedParallelRun(nodes int, succinct bool) {
+	if succinct {
+		s.print(0, "- %d nodes ", nodes)
+		return
+	}
+	s.println(0,
+		"Running in parallel across %s nodes",
+		s.colorize(boldStyle, "%d", nodes),
+	)
+	s.printNewLine()
+}
+
+func (s *consoleStenographer) AnnounceNumberOfSpecs(specsToRun int, total int, succinct bool) {
+	if succinct {
+		s.print(0, "- %d/%d specs ", specsToRun, total)
+		s.stream()
+		return
+	}
+	s.println(0,
+		"Will run %s of %s specs",
+		s.colorize(boldStyle, "%d", specsToRun),
+		s.colorize(boldStyle, "%d", total),
+	)
+
+	s.printNewLine()
+}
+
+func (s *consoleStenographer) AnnounceSpecRunCompletion(summary *types.SuiteSummary, succinct bool) {
+	if succinct && summary.SuiteSucceeded {
+		s.print(0, " %s %s ", s.colorize(greenColor, "SUCCESS!"), summary.RunTime)
+		return
+	}
+	s.printNewLine()
+	color := greenColor
+	if !summary.SuiteSucceeded {
+		color = redColor
+	}
+	s.println(0, s.colorize(boldStyle+color, "Ran %d of %d Specs in %.3f seconds", summary.NumberOfSpecsThatWillBeRun, summary.NumberOfTotalSpecs, summary.RunTime.Seconds()))
+
+	status := ""
+	if summary.SuiteSucceeded {
+		status = s.colorize(boldStyle+greenColor, "SUCCESS!")
+	} else {
+		status = s.colorize(boldStyle+redColor, "FAIL!")
+	}
+
+	s.print(0,
+		"%s -- %s | %s | %s | %s ",
+		status,
+		s.colorize(greenColor+boldStyle, "%d Passed", summary.NumberOfPassedSpecs),
+		s.colorize(redColor+boldStyle, "%d Failed", summary.NumberOfFailedSpecs),
+		s.colorize(yellowColor+boldStyle, "%d Pending", summary.NumberOfPendingSpecs),
+		s.colorize(cyanColor+boldStyle, "%d Skipped", summary.NumberOfSkippedSpecs),
+	)
+}
+
+func (s *consoleStenographer) AnnounceSpecWillRun(spec *types.SpecSummary) {
+	s.startBlock()
+	for i, text := range spec.ComponentTexts[1 : len(spec.ComponentTexts)-1] {
+		s.print(0, s.colorize(alternatingColors[i%2], text)+" ")
+	}
+
+	indentation := 0
+	if len(spec.ComponentTexts) > 2 {
+		indentation = 1
+		s.printNewLine()
+	}
+	index := len(spec.ComponentTexts) - 1
+	s.print(indentation, s.colorize(boldStyle, spec.ComponentTexts[index]))
+	s.printNewLine()
+	s.print(indentation, s.colorize(lightGrayColor, spec.ComponentCodeLocations[index].String()))
+	s.printNewLine()
+	s.midBlock()
+}
+
+func (s *consoleStenographer) AnnounceBeforeSuiteFailure(summary *types.SetupSummary, succinct bool, fullTrace bool) {
+	s.announceSetupFailure("BeforeSuite", summary, succinct, fullTrace)
+}
+
+func (s *consoleStenographer) AnnounceAfterSuiteFailure(summary *types.SetupSummary, succinct bool, fullTrace bool) {
+	s.announceSetupFailure("AfterSuite", summary, succinct, fullTrace)
+}
+
+func (s *consoleStenographer) announceSetupFailure(name string, summary *types.SetupSummary, succinct bool, fullTrace bool) {
+	s.startBlock()
+	var message string
+	switch summary.State {
+	case types.SpecStateFailed:
+		message = "Failure"
+	case types.SpecStatePanicked:
+		message = "Panic"
+	case types.SpecStateTimedOut:
+		message = "Timeout"
+	}
+
+	s.println(0, s.colorize(redColor+boldStyle, "%s [%.3f seconds]", message, summary.RunTime.Seconds()))
+
+	indentation := s.printCodeLocationBlock([]string{name}, []types.CodeLocation{summary.CodeLocation}, summary.ComponentType, 0, summary.State, true)
+
+	s.printNewLine()
+	s.printFailure(indentation, summary.State, summary.Failure, fullTrace)
+
+	s.endBlock()
+}
+
+func (s *consoleStenographer) AnnounceCapturedOutput(output string) {
+	if output == "" {
+		return
+	}
+
+	s.startBlock()
+	s.println(0, output)
+	s.midBlock()
+}
+
+func (s *consoleStenographer) AnnounceSuccesfulSpec(spec *types.SpecSummary) {
+	s.print(0, s.colorize(greenColor, "•"))
+	s.stream()
+}
+
+func (s *consoleStenographer) AnnounceSuccesfulSlowSpec(spec *types.SpecSummary, succinct bool) {
+	s.printBlockWithMessage(
+		s.colorize(greenColor, "• [SLOW TEST:%.3f seconds]", spec.RunTime.Seconds()),
+		"",
+		spec,
+		succinct,
+	)
+}
+
+func (s *consoleStenographer) AnnounceSuccesfulMeasurement(spec *types.SpecSummary, succinct bool) {
+	s.printBlockWithMessage(
+		s.colorize(greenColor, "• [MEASUREMENT]"),
+		s.measurementReport(spec, succinct),
+		spec,
+		succinct,
+	)
+}
+
+func (s *consoleStenographer) AnnouncePendingSpec(spec *types.SpecSummary, noisy bool) {
+	if noisy {
+		s.printBlockWithMessage(
+			s.colorize(yellowColor, "P [PENDING]"),
+			"",
+			spec,
+			false,
+		)
+	} else {
+		s.print(0, s.colorize(yellowColor, "P"))
+		s.stream()
+	}
+}
+
+func (s *consoleStenographer) AnnounceSkippedSpec(spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	// Skips at runtime will have a non-empty spec.Failure. All others should be succinct.
+	if succinct || spec.Failure == (types.SpecFailure{}) {
+		s.print(0, s.colorize(cyanColor, "S"))
+		s.stream()
+	} else {
+		s.startBlock()
+		s.println(0, s.colorize(cyanColor+boldStyle, "S [SKIPPING]%s [%.3f seconds]", s.failureContext(spec.Failure.ComponentType), spec.RunTime.Seconds()))
+
+		indentation := s.printCodeLocationBlock(spec.ComponentTexts, spec.ComponentCodeLocations, spec.Failure.ComponentType, spec.Failure.ComponentIndex, spec.State, succinct)
+
+		s.printNewLine()
+		s.printSkip(indentation, spec.Failure)
+		s.endBlock()
+	}
+}
+
+func (s *consoleStenographer) AnnounceSpecTimedOut(spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	s.printSpecFailure("•... Timeout", spec, succinct, fullTrace)
+}
+
+func (s *consoleStenographer) AnnounceSpecPanicked(spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	s.printSpecFailure("•! Panic", spec, succinct, fullTrace)
+}
+
+func (s *consoleStenographer) AnnounceSpecFailed(spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	s.printSpecFailure("• Failure", spec, succinct, fullTrace)
+}
+
+func (s *consoleStenographer) SummarizeFailures(summaries []*types.SpecSummary) {
+	failingSpecs := []*types.SpecSummary{}
+
+	for _, summary := range summaries {
+		if summary.HasFailureState() {
+			failingSpecs = append(failingSpecs, summary)
+		}
+	}
+
+	if len(failingSpecs) == 0 {
+		return
+	}
+
+	s.printNewLine()
+	s.printNewLine()
+	plural := "s"
+	if len(failingSpecs) == 1 {
+		plural = ""
+	}
+	s.println(0, s.colorize(redColor+boldStyle, "Summarizing %d Failure%s:", len(failingSpecs), plural))
+	for _, summary := range failingSpecs {
+		s.printNewLine()
+		if summary.HasFailureState() {
+			if summary.TimedOut() {
+				s.print(0, s.colorize(redColor+boldStyle, "[Timeout...] "))
+			} else if summary.Panicked() {
+				s.print(0, s.colorize(redColor+boldStyle, "[Panic!] "))
+			} else if summary.Failed() {
+				s.print(0, s.colorize(redColor+boldStyle, "[Fail] "))
+			}
+			s.printSpecContext(summary.ComponentTexts, summary.ComponentCodeLocations, summary.Failure.ComponentType, summary.Failure.ComponentIndex, summary.State, true)
+			s.printNewLine()
+			s.println(0, s.colorize(lightGrayColor, summary.Failure.Location.String()))
+		}
+	}
+}
+
+func (s *consoleStenographer) startBlock() {
+	if s.cursorState == cursorStateStreaming {
+		s.printNewLine()
+		s.printDelimiter()
+	} else if s.cursorState == cursorStateMidBlock {
+		s.printNewLine()
+	}
+}
+
+func (s *consoleStenographer) midBlock() {
+	s.cursorState = cursorStateMidBlock
+}
+
+func (s *consoleStenographer) endBlock() {
+	s.printDelimiter()
+	s.cursorState = cursorStateEndBlock
+}
+
+func (s *consoleStenographer) stream() {
+	s.cursorState = cursorStateStreaming
+}
+
+func (s *consoleStenographer) printBlockWithMessage(header string, message string, spec *types.SpecSummary, succinct bool) {
+	s.startBlock()
+	s.println(0, header)
+
+	indentation := s.printCodeLocationBlock(spec.ComponentTexts, spec.ComponentCodeLocations, types.SpecComponentTypeInvalid, 0, spec.State, succinct)
+
+	if message != "" {
+		s.printNewLine()
+		s.println(indentation, message)
+	}
+
+	s.endBlock()
+}
+
+func (s *consoleStenographer) printSpecFailure(message string, spec *types.SpecSummary, succinct bool, fullTrace bool) {
+	s.startBlock()
+	s.println(0, s.colorize(redColor+boldStyle, "%s%s [%.3f seconds]", message, s.failureContext(spec.Failure.ComponentType), spec.RunTime.Seconds()))
+
+	indentation := s.printCodeLocationBlock(spec.ComponentTexts, spec.ComponentCodeLocations, spec.Failure.ComponentType, spec.Failure.ComponentIndex, spec.State, succinct)
+
+	s.printNewLine()
+	s.printFailure(indentation, spec.State, spec.Failure, fullTrace)
+	s.endBlock()
+}
+
+func (s *consoleStenographer) failureContext(failedComponentType types.SpecComponentType) string {
+	switch failedComponentType {
+	case types.SpecComponentTypeBeforeSuite:
+		return " in Suite Setup (BeforeSuite)"
+	case types.SpecComponentTypeAfterSuite:
+		return " in Suite Teardown (AfterSuite)"
+	case types.SpecComponentTypeBeforeEach:
+		return " in Spec Setup (BeforeEach)"
+	case types.SpecComponentTypeJustBeforeEach:
+		return " in Spec Setup (JustBeforeEach)"
+	case types.SpecComponentTypeAfterEach:
+		return " in Spec Teardown (AfterEach)"
+	}
+
+	return ""
+}
+
+func (s *consoleStenographer) printSkip(indentation int, spec types.SpecFailure) {
+	s.println(indentation, s.colorize(cyanColor, spec.Message))
+	s.printNewLine()
+	s.println(indentation, spec.Location.String())
+}
+
+func (s *consoleStenographer) printFailure(indentation int, state types.SpecState, failure types.SpecFailure, fullTrace bool) {
+	if state == types.SpecStatePanicked {
+		s.println(indentation, s.colorize(redColor+boldStyle, failure.Message))
+		s.println(indentation, s.colorize(redColor, failure.ForwardedPanic))
+		s.println(indentation, failure.Location.String())
+		s.printNewLine()
+		s.println(indentation, s.colorize(redColor, "Full Stack Trace"))
+		s.println(indentation, failure.Location.FullStackTrace)
+	} else {
+		s.println(indentation, s.colorize(redColor, failure.Message))
+		s.printNewLine()
+		s.println(indentation, failure.Location.String())
+		if fullTrace {
+			s.printNewLine()
+			s.println(indentation, s.colorize(redColor, "Full Stack Trace"))
+			s.println(indentation, failure.Location.FullStackTrace)
+		}
+	}
+}
+
+func (s *consoleStenographer) printSpecContext(componentTexts []string, componentCodeLocations []types.CodeLocation, failedComponentType types.SpecComponentType, failedComponentIndex int, state types.SpecState, succinct bool) int {
+	startIndex := 1
+	indentation := 0
+
+	if len(componentTexts) == 1 {
+		startIndex = 0
+	}
+
+	for i := startIndex; i < len(componentTexts); i++ {
+		if (state.IsFailure() || state == types.SpecStateSkipped) && i == failedComponentIndex {
+			color := redColor
+			if state == types.SpecStateSkipped {
+				color = cyanColor
+			}
+			blockType := ""
+			switch failedComponentType {
+			case types.SpecComponentTypeBeforeSuite:
+				blockType = "BeforeSuite"
+			case types.SpecComponentTypeAfterSuite:
+				blockType = "AfterSuite"
+			case types.SpecComponentTypeBeforeEach:
+				blockType = "BeforeEach"
+			case types.SpecComponentTypeJustBeforeEach:
+				blockType = "JustBeforeEach"
+			case types.SpecComponentTypeAfterEach:
+				blockType = "AfterEach"
+			case types.SpecComponentTypeIt:
+				blockType = "It"
+			case types.SpecComponentTypeMeasure:
+				blockType = "Measurement"
+			}
+			if succinct {
+				s.print(0, s.colorize(color+boldStyle, "[%s] %s ", blockType, componentTexts[i]))
+			} else {
+				s.println(indentation, s.colorize(color+boldStyle, "%s [%s]", componentTexts[i], blockType))
+				s.println(indentation, s.colorize(grayColor, "%s", componentCodeLocations[i]))
+			}
+		} else {
+			if succinct {
+				s.print(0, s.colorize(alternatingColors[i%2], "%s ", componentTexts[i]))
+			} else {
+				s.println(indentation, componentTexts[i])
+				s.println(indentation, s.colorize(grayColor, "%s", componentCodeLocations[i]))
+			}
+		}
+		indentation++
+	}
+
+	return indentation
+}
+
+func (s *consoleStenographer) printCodeLocationBlock(componentTexts []string, componentCodeLocations []types.CodeLocation, failedComponentType types.SpecComponentType, failedComponentIndex int, state types.SpecState, succinct bool) int {
+	indentation := s.printSpecContext(componentTexts, componentCodeLocations, failedComponentType, failedComponentIndex, state, succinct)
+
+	if succinct {
+		if len(componentTexts) > 0 {
+			s.printNewLine()
+			s.print(0, s.colorize(lightGrayColor, "%s", componentCodeLocations[len(componentCodeLocations)-1]))
+		}
+		s.printNewLine()
+		indentation = 1
+	} else {
+		indentation--
+	}
+
+	return indentation
+}
+
+func (s *consoleStenographer) orderedMeasurementKeys(measurements map[string]*types.SpecMeasurement) []string {
+	orderedKeys := make([]string, len(measurements))
+	for key, measurement := range measurements {
+		orderedKeys[measurement.Order] = key
+	}
+	return orderedKeys
+}
+
+func (s *consoleStenographer) measurementReport(spec *types.SpecSummary, succinct bool) string {
+	if len(spec.Measurements) == 0 {
+		return "Found no measurements"
+	}
+
+	message := []string{}
+	orderedKeys := s.orderedMeasurementKeys(spec.Measurements)
+
+	if succinct {
+		message = append(message, fmt.Sprintf("%s samples:", s.colorize(boldStyle, "%d", spec.NumberOfSamples)))
+		for _, key := range orderedKeys {
+			measurement := spec.Measurements[key]
+			message = append(message, fmt.Sprintf("  %s - %s: %s%s, %s: %s%s ± %s%s, %s: %s%s",
+				s.colorize(boldStyle, "%s", measurement.Name),
+				measurement.SmallestLabel,
+				s.colorize(greenColor, "%.3f", measurement.Smallest),
+				measurement.Units,
+				measurement.AverageLabel,
+				s.colorize(cyanColor, "%.3f", measurement.Average),
+				measurement.Units,
+				s.colorize(cyanColor, "%.3f", measurement.StdDeviation),
+				measurement.Units,
+				measurement.LargestLabel,
+				s.colorize(redColor, "%.3f", measurement.Largest),
+				measurement.Units,
+			))
+		}
+	} else {
+		message = append(message, fmt.Sprintf("Ran %s samples:", s.colorize(boldStyle, "%d", spec.NumberOfSamples)))
+		for _, key := range orderedKeys {
+			measurement := spec.Measurements[key]
+			info := ""
+			if measurement.Info != nil {
+				message = append(message, fmt.Sprintf("%v", measurement.Info))
+			}
+
+			message = append(message, fmt.Sprintf("%s:\n%s  %s: %s%s\n  %s: %s%s\n  %s: %s%s ± %s%s",
+				s.colorize(boldStyle, "%s", measurement.Name),
+				info,
+				measurement.SmallestLabel,
+				s.colorize(greenColor, "%.3f", measurement.Smallest),
+				measurement.Units,
+				measurement.LargestLabel,
+				s.colorize(redColor, "%.3f", measurement.Largest),
+				measurement.Units,
+				measurement.AverageLabel,
+				s.colorize(cyanColor, "%.3f", measurement.Average),
+				measurement.Units,
+				s.colorize(cyanColor, "%.3f", measurement.StdDeviation),
+				measurement.Units,
+			))
+		}
+	}
+
+	return strings.Join(message, "\n")
+}
diff --git a/vendor/github.com/onsi/ginkgo/reporters/teamcity_reporter.go b/vendor/github.com/onsi/ginkgo/reporters/teamcity_reporter.go
new file mode 100644
index 0000000..657dfe7
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/reporters/teamcity_reporter.go
@@ -0,0 +1,92 @@
+/*
+
+TeamCity Reporter for Ginkgo
+
+Makes use of TeamCity's support for Service Messages
+http://confluence.jetbrains.com/display/TCD7/Build+Script+Interaction+with+TeamCity#BuildScriptInteractionwithTeamCity-ReportingTests
+*/
+
+package reporters
+
+import (
+	"fmt"
+	"github.com/onsi/ginkgo/config"
+	"github.com/onsi/ginkgo/types"
+	"io"
+	"strings"
+)
+
+const (
+	messageId = "##teamcity"
+)
+
+type TeamCityReporter struct {
+	writer        io.Writer
+	testSuiteName string
+}
+
+func NewTeamCityReporter(writer io.Writer) *TeamCityReporter {
+	return &TeamCityReporter{
+		writer: writer,
+	}
+}
+
+func (reporter *TeamCityReporter) SpecSuiteWillBegin(config config.GinkgoConfigType, summary *types.SuiteSummary) {
+	reporter.testSuiteName = escape(summary.SuiteDescription)
+	fmt.Fprintf(reporter.writer, "%s[testSuiteStarted name='%s']", messageId, reporter.testSuiteName)
+}
+
+func (reporter *TeamCityReporter) BeforeSuiteDidRun(setupSummary *types.SetupSummary) {
+	reporter.handleSetupSummary("BeforeSuite", setupSummary)
+}
+
+func (reporter *TeamCityReporter) AfterSuiteDidRun(setupSummary *types.SetupSummary) {
+	reporter.handleSetupSummary("AfterSuite", setupSummary)
+}
+
+func (reporter *TeamCityReporter) handleSetupSummary(name string, setupSummary *types.SetupSummary) {
+	if setupSummary.State != types.SpecStatePassed {
+		testName := escape(name)
+		fmt.Fprintf(reporter.writer, "%s[testStarted name='%s']", messageId, testName)
+		message := escape(setupSummary.Failure.ComponentCodeLocation.String())
+		details := escape(setupSummary.Failure.Message)
+		fmt.Fprintf(reporter.writer, "%s[testFailed name='%s' message='%s' details='%s']", messageId, testName, message, details)
+		durationInMilliseconds := setupSummary.RunTime.Seconds() * 1000
+		fmt.Fprintf(reporter.writer, "%s[testFinished name='%s' duration='%v']", messageId, testName, durationInMilliseconds)
+	}
+}
+
+func (reporter *TeamCityReporter) SpecWillRun(specSummary *types.SpecSummary) {
+	testName := escape(strings.Join(specSummary.ComponentTexts[1:], " "))
+	fmt.Fprintf(reporter.writer, "%s[testStarted name='%s']", messageId, testName)
+}
+
+func (reporter *TeamCityReporter) SpecDidComplete(specSummary *types.SpecSummary) {
+	testName := escape(strings.Join(specSummary.ComponentTexts[1:], " "))
+
+	if specSummary.State == types.SpecStateFailed || specSummary.State == types.SpecStateTimedOut || specSummary.State == types.SpecStatePanicked {
+		message := escape(specSummary.Failure.ComponentCodeLocation.String())
+		details := escape(specSummary.Failure.Message)
+		fmt.Fprintf(reporter.writer, "%s[testFailed name='%s' message='%s' details='%s']", messageId, testName, message, details)
+	}
+	if specSummary.State == types.SpecStateSkipped || specSummary.State == types.SpecStatePending {
+		fmt.Fprintf(reporter.writer, "%s[testIgnored name='%s']", messageId, testName)
+	}
+
+	durationInMilliseconds := specSummary.RunTime.Seconds() * 1000
+	fmt.Fprintf(reporter.writer, "%s[testFinished name='%s' duration='%v']", messageId, testName, durationInMilliseconds)
+}
+
+func (reporter *TeamCityReporter) SpecSuiteDidEnd(summary *types.SuiteSummary) {
+	fmt.Fprintf(reporter.writer, "%s[testSuiteFinished name='%s']", messageId, reporter.testSuiteName)
+}
+
+func escape(output string) string {
+	output = strings.Replace(output, "|", "||", -1)
+	output = strings.Replace(output, "'", "|'", -1)
+	output = strings.Replace(output, "\n", "|n", -1)
+	output = strings.Replace(output, "\r", "|r", -1)
+	output = strings.Replace(output, "[", "|[", -1)
+	output = strings.Replace(output, "]", "|]", -1)
+	return output
+}
diff --git a/vendor/github.com/onsi/ginkgo/types/code_location.go b/vendor/github.com/onsi/ginkgo/types/code_location.go
new file mode 100644
index 0000000..935a89e
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/types/code_location.go
@@ -0,0 +1,15 @@
+package types
+
+import (
+	"fmt"
+)
+
+type CodeLocation struct {
+	FileName       string
+	LineNumber     int
+	FullStackTrace string
+}
+
+func (codeLocation CodeLocation) String() string {
+	return fmt.Sprintf("%s:%d", codeLocation.FileName, codeLocation.LineNumber)
+}
diff --git a/vendor/github.com/onsi/ginkgo/types/synchronization.go b/vendor/github.com/onsi/ginkgo/types/synchronization.go
new file mode 100644
index 0000000..fdd6ed5
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/types/synchronization.go
@@ -0,0 +1,30 @@
+package types
+
+import (
+	"encoding/json"
+)
+
+type RemoteBeforeSuiteState int
+
+const (
+	RemoteBeforeSuiteStateInvalid RemoteBeforeSuiteState = iota
+
+	RemoteBeforeSuiteStatePending
+	RemoteBeforeSuiteStatePassed
+	RemoteBeforeSuiteStateFailed
+	RemoteBeforeSuiteStateDisappeared
+)
+
+type RemoteBeforeSuiteData struct {
+	Data  []byte
+	State RemoteBeforeSuiteState
+}
+
+func (r RemoteBeforeSuiteData) ToJSON() []byte {
+	data, _ := json.Marshal(r)
+	return data
+}
+
+type RemoteAfterSuiteData struct {
+	CanRun bool
+}
diff --git a/vendor/github.com/onsi/ginkgo/types/types.go b/vendor/github.com/onsi/ginkgo/types/types.go
new file mode 100644
index 0000000..889612e
--- /dev/null
+++ b/vendor/github.com/onsi/ginkgo/types/types.go
@@ -0,0 +1,143 @@
+package types
+
+import "time"
+
+const GINKGO_FOCUS_EXIT_CODE = 197
+
+type SuiteSummary struct {
+	SuiteDescription string
+	SuiteSucceeded   bool
+	SuiteID          string
+
+	NumberOfSpecsBeforeParallelization int
+	NumberOfTotalSpecs                 int
+	NumberOfSpecsThatWillBeRun         int
+	NumberOfPendingSpecs               int
+	NumberOfSkippedSpecs               int
+	NumberOfPassedSpecs                int
+	NumberOfFailedSpecs                int
+	RunTime                            time.Duration
+}
+
+type SpecSummary struct {
+	ComponentTexts         []string
+	ComponentCodeLocations []CodeLocation
+
+	State           SpecState
+	RunTime         time.Duration
+	Failure         SpecFailure
+	IsMeasurement   bool
+	NumberOfSamples int
+	Measurements    map[string]*SpecMeasurement
+
+	CapturedOutput string
+	SuiteID        string
+}
+
+func (s SpecSummary) HasFailureState() bool {
+	return s.State.IsFailure()
+}
+
+func (s SpecSummary) TimedOut() bool {
+	return s.State == SpecStateTimedOut
+}
+
+func (s SpecSummary) Panicked() bool {
+	return s.State == SpecStatePanicked
+}
+
+func (s SpecSummary) Failed() bool {
+	return s.State == SpecStateFailed
+}
+
+func (s SpecSummary) Passed() bool {
+	return s.State == SpecStatePassed
+}
+
+func (s SpecSummary) Skipped() bool {
+	return s.State == SpecStateSkipped
+}
+
+func (s SpecSummary) Pending() bool {
+	return s.State == SpecStatePending
+}
+
+type SetupSummary struct {
+	ComponentType SpecComponentType
+	CodeLocation  CodeLocation
+
+	State   SpecState
+	RunTime time.Duration
+	Failure SpecFailure
+
+	CapturedOutput string
+	SuiteID        string
+}
+
+type SpecFailure struct {
+	Message        string
+	Location       CodeLocation
+	ForwardedPanic string
+
+	ComponentIndex        int
+	ComponentType         SpecComponentType
+	ComponentCodeLocation CodeLocation
+}
+
+type SpecMeasurement struct {
+	Name  string
+	Info  interface{}
+	Order int
+
+	Results []float64
+
+	Smallest     float64
+	Largest      float64
+	Average      float64
+	StdDeviation float64
+
+	SmallestLabel string
+	LargestLabel  string
+	AverageLabel  string
+	Units         string
+}
+
+type SpecState uint
+
+const (
+	SpecStateInvalid SpecState = iota
+
+	SpecStatePending
+	SpecStateSkipped
+	SpecStatePassed
+	SpecStateFailed
+	SpecStatePanicked
+	SpecStateTimedOut
+)
+
+func (state SpecState) IsFailure() bool {
+	return state == SpecStateTimedOut || state == SpecStatePanicked || state == SpecStateFailed
+}
+
+type SpecComponentType uint
+
+const (
+	SpecComponentTypeInvalid SpecComponentType = iota
+
+	SpecComponentTypeContainer
+	SpecComponentTypeBeforeSuite
+	SpecComponentTypeAfterSuite
+	SpecComponentTypeBeforeEach
+	SpecComponentTypeJustBeforeEach
+	SpecComponentTypeAfterEach
+	SpecComponentTypeIt
+	SpecComponentTypeMeasure
+)
+
+type FlagType uint
+
+const (
+	FlagTypeNone FlagType = iota
+	FlagTypeFocused
+	FlagTypePending
+)
diff --git a/vendor/github.com/onsi/gomega/.gitignore b/vendor/github.com/onsi/gomega/.gitignore
new file mode 100644
index 0000000..5514532
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/.gitignore
@@ -0,0 +1,3 @@
+.DS_Store
+*.test
+.
diff --git a/vendor/github.com/onsi/gomega/.travis.yml b/vendor/github.com/onsi/gomega/.travis.yml
new file mode 100644
index 0000000..79780ec
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/.travis.yml
@@ -0,0 +1,11 @@
+language: go
+go:
+  - 1.4
+  - 1.5
+
+install:
+  - go get -v ./...
+  - go get github.com/onsi/ginkgo
+  - go install github.com/onsi/ginkgo/ginkgo
+
+script: $HOME/gopath/bin/ginkgo -r --randomizeAllSpecs --failOnPending --randomizeSuites --race
diff --git a/vendor/github.com/onsi/gomega/CHANGELOG.md b/vendor/github.com/onsi/gomega/CHANGELOG.md
new file mode 100644
index 0000000..752f52d
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/CHANGELOG.md
@@ -0,0 +1,68 @@
+## HEAD
+
+Improvements:
+
+- Added `BeSent` which attempts to send a value down a channel and fails if the attempt blocks.  Can be paired with `Eventually` to safely send a value down a channel with a timeout.
+- `Ω`, `Expect`, `Eventually`, and `Consistently` now immediately `panic` if there is no registered fail handler.  This is always a mistake that can hide failing tests.
+- `Receive()` no longer errors when passed a closed channel, it's perfectly fine to attempt to read from a closed channel so Ω(c).Should(Receive()) always fails and Ω(c).ShoudlNot(Receive()) always passes with a closed channel.
+- Added `HavePrefix` and `HaveSuffix` matchers.
+- `ghttp` can now handle concurrent requests.
+- Added `Succeed` which allows one to write `Ω(MyFunction()).Should(Succeed())`.
+- Improved `ghttp`'s behavior around failing assertions and panics:
+    - If a registered handler makes a failing assertion `ghttp` will return `500`.
+    - If a registered handler panics, `ghttp` will return `500` *and* fail the test.  This is new behavior that may cause existing code to break.  This code is almost certainly incorrect and creating a false positive.
+- `ghttp` servers can take an `io.Writer`.  `ghttp` will write a line to the writer when each request arrives.
+
+Bug Fixes:
+- gexec: `session.Wait` now uses `EventuallyWithOffset` to get the right line number in the failure.
+- `ContainElement` no longer bails if a passed-in matcher errors.
+
+## 1.0 (8/2/2014)
+
+No changes. Dropping "beta" from the version number.
+
+## 1.0.0-beta (7/8/2014)
+Breaking Changes:
+
+- Changed OmegaMatcher interface.  Instead of having `Match` return failure messages, two new methods `FailureMessage` and `NegatedFailureMessage` are called instead.
+- Moved and renamed OmegaFailHandler to types.GomegaFailHandler and OmegaMatcher to types.GomegaMatcher.  Any references to OmegaMatcher in any custom matchers will need to be changed to point to types.GomegaMatcher
+
+New Test-Support Features:
+
+- `ghttp`: supports testing http clients
+    - Provides a flexible fake http server
+    - Provides a collection of chainable http handlers that perform assertions.
+- `gbytes`: supports making ordered assertions against streams of data
+    - Provides a `gbytes.Buffer`
+    - Provides a `Say` matcher to perform ordered assertions against output data
+- `gexec`: supports testing external processes
+    - Provides support for building Go binaries
+    - Wraps and starts `exec.Cmd` commands
+    - Makes it easy to assert against stdout and stderr
+    - Makes it easy to send signals and wait for processes to exit
+    - Provides an `Exit` matcher to assert against exit code.
+
+DSL Changes:
+
+- `Eventually` and `Consistently` can accept `time.Duration` interval and polling inputs.
+- The default timeouts for `Eventually` and `Consistently` are now configurable.
+
+New Matchers:
+
+- `ConsistOf`: order-independent assertion against the elements of an array/slice or keys of a map.
+- `BeTemporally`: like `BeNumerically` but for `time.Time`
+- `HaveKeyWithValue`: asserts a map has a given key with the given value.
+
+Updated Matchers:
+
+- `Receive` matcher can take a matcher as an argument and passes only if the channel under test receives an objet that satisfies the passed-in matcher.
+- Matchers that implement `MatchMayChangeInTheFuture(actual interface{}) bool` can inform `Eventually` and/or `Consistently` when a match has no chance of changing status in the future.  For example, `Receive` returns `false` when a channel is closed.
+
+Misc:
+
+- Start using semantic versioning
+- Start maintaining changelog
+
+Major refactor:
+
+- Pull out Gomega's internal to `internal`
diff --git a/vendor/github.com/onsi/gomega/LICENSE b/vendor/github.com/onsi/gomega/LICENSE
new file mode 100644
index 0000000..9415ee7
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2013-2014 Onsi Fakhouri
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/onsi/gomega/README.md b/vendor/github.com/onsi/gomega/README.md
new file mode 100644
index 0000000..c825591
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/README.md
@@ -0,0 +1,17 @@
+![Gomega: Ginkgo's Preferred Matcher Library](http://onsi.github.io/gomega/images/gomega.png)
+
+[![Build Status](https://travis-ci.org/onsi/gomega.png)](https://travis-ci.org/onsi/gomega)
+
+Jump straight to the [docs](http://onsi.github.io/gomega/) to learn about Gomega, including a list of [all available matchers](http://onsi.github.io/gomega/#provided-matchers).
+
+To discuss Gomega and get updates, join the [google group](https://groups.google.com/d/forum/ginkgo-and-gomega).
+
+## [Ginkgo](http://github.com/onsi/ginkgo): a BDD Testing Framework for Golang
+
+Learn more about Ginkgo [here](http://onsi.github.io/ginkgo/)
+
+## License
+
+Gomega is MIT-Licensed
+
+The `ConsistOf` matcher uses [goraph](https://github.com/amitkgupta/goraph) which is embedded in the source to simplify distribution.  goraph has an MIT license.
diff --git a/vendor/github.com/onsi/gomega/format/format.go b/vendor/github.com/onsi/gomega/format/format.go
new file mode 100644
index 0000000..ec9c91a
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/format/format.go
@@ -0,0 +1,276 @@
+/*
+Gomega's format package pretty-prints objects.  It explores input objects recursively and generates formatted, indented output with type information.
+*/
+package format
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+// Use MaxDepth to set the maximum recursion depth when printing deeply nested objects
+var MaxDepth = uint(10)
+
+/*
+By default, all objects (even those that implement fmt.Stringer and fmt.GoStringer) are recursively inspected to generate output.
+
+Set UseStringerRepresentation = true to use GoString (for fmt.GoStringers) or String (for fmt.Stringer) instead.
+
+Note that GoString and String don't always have all the information you need to understand why a test failed!
+*/
+var UseStringerRepresentation = false
+
+//The default indentation string emitted by the format package
+var Indent = "    "
+
+var longFormThreshold = 20
+
+/*
+Generates a formatted matcher success/failure message of the form:
+
+	Expected
+		<pretty printed actual>
+	<message>
+		<pretty printed expected>
+
+If expected is omited, then the message looks like:
+
+	Expected
+		<pretty printed actual>
+	<message>
+*/
+func Message(actual interface{}, message string, expected ...interface{}) string {
+	if len(expected) == 0 {
+		return fmt.Sprintf("Expected\n%s\n%s", Object(actual, 1), message)
+	} else {
+		return fmt.Sprintf("Expected\n%s\n%s\n%s", Object(actual, 1), message, Object(expected[0], 1))
+	}
+}
+
+/*
+Pretty prints the passed in object at the passed in indentation level.
+
+Object recurses into deeply nested objects emitting pretty-printed representations of their components.
+
+Modify format.MaxDepth to control how deep the recursion is allowed to go
+Set format.UseStringerRepresentation to true to return object.GoString() or object.String() when available instead of
+recursing into the object.
+*/
+func Object(object interface{}, indentation uint) string {
+	indent := strings.Repeat(Indent, int(indentation))
+	value := reflect.ValueOf(object)
+	return fmt.Sprintf("%s<%s>: %s", indent, formatType(object), formatValue(value, indentation))
+}
+
+/*
+IndentString takes a string and indents each line by the specified amount.
+*/
+func IndentString(s string, indentation uint) string {
+	components := strings.Split(s, "\n")
+	result := ""
+	indent := strings.Repeat(Indent, int(indentation))
+	for i, component := range components {
+		result += indent + component
+		if i < len(components)-1 {
+			result += "\n"
+		}
+	}
+
+	return result
+}
+
+func formatType(object interface{}) string {
+	t := reflect.TypeOf(object)
+	if t == nil {
+		return "nil"
+	}
+	switch t.Kind() {
+	case reflect.Chan:
+		v := reflect.ValueOf(object)
+		return fmt.Sprintf("%T | len:%d, cap:%d", object, v.Len(), v.Cap())
+	case reflect.Ptr:
+		return fmt.Sprintf("%T | %p", object, object)
+	case reflect.Slice:
+		v := reflect.ValueOf(object)
+		return fmt.Sprintf("%T | len:%d, cap:%d", object, v.Len(), v.Cap())
+	case reflect.Map:
+		v := reflect.ValueOf(object)
+		return fmt.Sprintf("%T | len:%d", object, v.Len())
+	default:
+		return fmt.Sprintf("%T", object)
+	}
+}
+
+func formatValue(value reflect.Value, indentation uint) string {
+	if indentation > MaxDepth {
+		return "..."
+	}
+
+	if isNilValue(value) {
+		return "nil"
+	}
+
+	if UseStringerRepresentation {
+		if value.CanInterface() {
+			obj := value.Interface()
+			switch x := obj.(type) {
+			case fmt.GoStringer:
+				return x.GoString()
+			case fmt.Stringer:
+				return x.String()
+			}
+		}
+	}
+
+	switch value.Kind() {
+	case reflect.Bool:
+		return fmt.Sprintf("%v", value.Bool())
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return fmt.Sprintf("%v", value.Int())
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		return fmt.Sprintf("%v", value.Uint())
+	case reflect.Uintptr:
+		return fmt.Sprintf("0x%x", value.Uint())
+	case reflect.Float32, reflect.Float64:
+		return fmt.Sprintf("%v", value.Float())
+	case reflect.Complex64, reflect.Complex128:
+		return fmt.Sprintf("%v", value.Complex())
+	case reflect.Chan:
+		return fmt.Sprintf("0x%x", value.Pointer())
+	case reflect.Func:
+		return fmt.Sprintf("0x%x", value.Pointer())
+	case reflect.Ptr:
+		return formatValue(value.Elem(), indentation)
+	case reflect.Slice:
+		if value.Type().Elem().Kind() == reflect.Uint8 {
+			return formatString(value.Bytes(), indentation)
+		}
+		return formatSlice(value, indentation)
+	case reflect.String:
+		return formatString(value.String(), indentation)
+	case reflect.Array:
+		return formatSlice(value, indentation)
+	case reflect.Map:
+		return formatMap(value, indentation)
+	case reflect.Struct:
+		return formatStruct(value, indentation)
+	case reflect.Interface:
+		return formatValue(value.Elem(), indentation)
+	default:
+		if value.CanInterface() {
+			return fmt.Sprintf("%#v", value.Interface())
+		} else {
+			return fmt.Sprintf("%#v", value)
+		}
+	}
+}
+
+func formatString(object interface{}, indentation uint) string {
+	if indentation == 1 {
+		s := fmt.Sprintf("%s", object)
+		components := strings.Split(s, "\n")
+		result := ""
+		for i, component := range components {
+			if i == 0 {
+				result += component
+			} else {
+				result += Indent + component
+			}
+			if i < len(components)-1 {
+				result += "\n"
+			}
+		}
+
+		return fmt.Sprintf("%s", result)
+	} else {
+		return fmt.Sprintf("%q", object)
+	}
+}
+
+func formatSlice(v reflect.Value, indentation uint) string {
+	l := v.Len()
+	result := make([]string, l)
+	longest := 0
+	for i := 0; i < l; i++ {
+		result[i] = formatValue(v.Index(i), indentation+1)
+		if len(result[i]) > longest {
+			longest = len(result[i])
+		}
+	}
+
+	if longest > longFormThreshold {
+		indenter := strings.Repeat(Indent, int(indentation))
+		return fmt.Sprintf("[\n%s%s,\n%s]", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter)
+	} else {
+		return fmt.Sprintf("[%s]", strings.Join(result, ", "))
+	}
+}
+
+func formatMap(v reflect.Value, indentation uint) string {
+	l := v.Len()
+	result := make([]string, l)
+
+	longest := 0
+	for i, key := range v.MapKeys() {
+		value := v.MapIndex(key)
+		result[i] = fmt.Sprintf("%s: %s", formatValue(key, 0), formatValue(value, indentation+1))
+		if len(result[i]) > longest {
+			longest = len(result[i])
+		}
+	}
+
+	if longest > longFormThreshold {
+		indenter := strings.Repeat(Indent, int(indentation))
+		return fmt.Sprintf("{\n%s%s,\n%s}", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter)
+	} else {
+		return fmt.Sprintf("{%s}", strings.Join(result, ", "))
+	}
+}
+
+func formatStruct(v reflect.Value, indentation uint) string {
+	t := v.Type()
+
+	l := v.NumField()
+	result := []string{}
+	longest := 0
+	for i := 0; i < l; i++ {
+		structField := t.Field(i)
+		fieldEntry := v.Field(i)
+		representation := fmt.Sprintf("%s: %s", structField.Name, formatValue(fieldEntry, indentation+1))
+		result = append(result, representation)
+		if len(representation) > longest {
+			longest = len(representation)
+		}
+	}
+	if longest > longFormThreshold {
+		indenter := strings.Repeat(Indent, int(indentation))
+		return fmt.Sprintf("{\n%s%s,\n%s}", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter)
+	} else {
+		return fmt.Sprintf("{%s}", strings.Join(result, ", "))
+	}
+}
+
+func isNilValue(a reflect.Value) bool {
+	switch a.Kind() {
+	case reflect.Invalid:
+		return true
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
+		return a.IsNil()
+	}
+
+	return false
+}
+
+func isNil(a interface{}) bool {
+	if a == nil {
+		return true
+	}
+
+	switch reflect.TypeOf(a).Kind() {
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
+		return reflect.ValueOf(a).IsNil()
+	}
+
+	return false
+}
diff --git a/vendor/github.com/onsi/gomega/gomega_dsl.go b/vendor/github.com/onsi/gomega/gomega_dsl.go
new file mode 100644
index 0000000..78bd188
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/gomega_dsl.go
@@ -0,0 +1,335 @@
+/*
+Gomega is the Ginkgo BDD-style testing framework's preferred matcher library.
+
+The godoc documentation describes Gomega's API.  More comprehensive documentation (with examples!) is available at http://onsi.github.io/gomega/
+
+Gomega on Github: http://github.com/onsi/gomega
+
+Learn more about Ginkgo online: http://onsi.github.io/ginkgo
+
+Ginkgo on Github: http://github.com/onsi/ginkgo
+
+Gomega is MIT-Licensed
+*/
+package gomega
+
+import (
+	"fmt"
+	"reflect"
+	"time"
+
+	"github.com/onsi/gomega/internal/assertion"
+	"github.com/onsi/gomega/internal/asyncassertion"
+	"github.com/onsi/gomega/internal/testingtsupport"
+	"github.com/onsi/gomega/types"
+)
+
+const GOMEGA_VERSION = "1.0"
+
+const nilFailHandlerPanic = `You are trying to make an assertion, but Gomega's fail handler is nil.
+If you're using Ginkgo then you probably forgot to put your assertion in an It().
+Alternatively, you may have forgotten to register a fail handler with RegisterFailHandler() or RegisterTestingT().
+`
+
+var globalFailHandler types.GomegaFailHandler
+
+var defaultEventuallyTimeout = time.Second
+var defaultEventuallyPollingInterval = 10 * time.Millisecond
+var defaultConsistentlyDuration = 100 * time.Millisecond
+var defaultConsistentlyPollingInterval = 10 * time.Millisecond
+
+//RegisterFailHandler connects Ginkgo to Gomega.  When a matcher fails
+//the fail handler passed into RegisterFailHandler is called.
+func RegisterFailHandler(handler types.GomegaFailHandler) {
+	globalFailHandler = handler
+}
+
+//RegisterTestingT connects Gomega to Golang's XUnit style
+//Testing.T tests.  You'll need to call this at the top of each XUnit style test:
+//
+// func TestFarmHasCow(t *testing.T) {
+//     RegisterTestingT(t)
+//
+//	   f := farm.New([]string{"Cow", "Horse"})
+//     Expect(f.HasCow()).To(BeTrue(), "Farm should have cow")
+// }
+//
+// Note that this *testing.T is registered *globally* by Gomega (this is why you don't have to
+// pass `t` down to the matcher itself).  This means that you cannot run the XUnit style tests
+// in parallel as the global fail handler cannot point to more than one testing.T at a time.
+//
+// (As an aside: Ginkgo gets around this limitation by running parallel tests in different *processes*).
+func RegisterTestingT(t types.GomegaTestingT) {
+	RegisterFailHandler(testingtsupport.BuildTestingTGomegaFailHandler(t))
+}
+
+//InterceptGomegaHandlers runs a given callback and returns an array of
+//failure messages generated by any Gomega assertions within the callback.
+//
+//This is accomplished by temporarily replacing the *global* fail handler
+//with a fail handler that simply annotates failures.  The original fail handler
+//is reset when InterceptGomegaFailures returns.
+//
+//This is most useful when testing custom matchers, but can also be used to check
+//on a value using a Gomega assertion without causing a test failure.
+func InterceptGomegaFailures(f func()) []string {
+	originalHandler := globalFailHandler
+	failures := []string{}
+	RegisterFailHandler(func(message string, callerSkip ...int) {
+		failures = append(failures, message)
+	})
+	f()
+	RegisterFailHandler(originalHandler)
+	return failures
+}
+
+//Ω wraps an actual value allowing assertions to be made on it:
+//	Ω("foo").Should(Equal("foo"))
+//
+//If Ω is passed more than one argument it will pass the *first* argument to the matcher.
+//All subsequent arguments will be required to be nil/zero.
+//
+//This is convenient if you want to make an assertion on a method/function that returns
+//a value and an error - a common patter in Go.
+//
+//For example, given a function with signature:
+//  func MyAmazingThing() (int, error)
+//
+//Then:
+//    Ω(MyAmazingThing()).Should(Equal(3))
+//Will succeed only if `MyAmazingThing()` returns `(3, nil)`
+//
+//Ω and Expect are identical
+func Ω(actual interface{}, extra ...interface{}) GomegaAssertion {
+	return ExpectWithOffset(0, actual, extra...)
+}
+
+//Expect wraps an actual value allowing assertions to be made on it:
+//	Expect("foo").To(Equal("foo"))
+//
+//If Expect is passed more than one argument it will pass the *first* argument to the matcher.
+//All subsequent arguments will be required to be nil/zero.
+//
+//This is convenient if you want to make an assertion on a method/function that returns
+//a value and an error - a common patter in Go.
+//
+//For example, given a function with signature:
+//  func MyAmazingThing() (int, error)
+//
+//Then:
+//    Expect(MyAmazingThing()).Should(Equal(3))
+//Will succeed only if `MyAmazingThing()` returns `(3, nil)`
+//
+//Expect and Ω are identical
+func Expect(actual interface{}, extra ...interface{}) GomegaAssertion {
+	return ExpectWithOffset(0, actual, extra...)
+}
+
+//ExpectWithOffset wraps an actual value allowing assertions to be made on it:
+//    ExpectWithOffset(1, "foo").To(Equal("foo"))
+//
+//Unlike `Expect` and `Ω`, `ExpectWithOffset` takes an additional integer argument
+//this is used to modify the call-stack offset when computing line numbers.
+//
+//This is most useful in helper functions that make assertions.  If you want Gomega's
+//error message to refer to the calling line in the test (as opposed to the line in the helper function)
+//set the first argument of `ExpectWithOffset` appropriately.
+func ExpectWithOffset(offset int, actual interface{}, extra ...interface{}) GomegaAssertion {
+	if globalFailHandler == nil {
+		panic(nilFailHandlerPanic)
+	}
+	return assertion.New(actual, globalFailHandler, offset, extra...)
+}
+
+//Eventually wraps an actual value allowing assertions to be made on it.
+//The assertion is tried periodically until it passes or a timeout occurs.
+//
+//Both the timeout and polling interval are configurable as optional arguments:
+//The first optional argument is the timeout
+//The second optional argument is the polling interval
+//
+//Both intervals can either be specified as time.Duration, parsable duration strings or as floats/integers.  In the
+//last case they are interpreted as seconds.
+//
+//If Eventually is passed an actual that is a function taking no arguments and returning at least one value,
+//then Eventually will call the function periodically and try the matcher against the function's first return value.
+//
+//Example:
+//
+//    Eventually(func() int {
+//        return thingImPolling.Count()
+//    }).Should(BeNumerically(">=", 17))
+//
+//Note that this example could be rewritten:
+//
+//    Eventually(thingImPolling.Count).Should(BeNumerically(">=", 17))
+//
+//If the function returns more than one value, then Eventually will pass the first value to the matcher and
+//assert that all other values are nil/zero.
+//This allows you to pass Eventually a function that returns a value and an error - a common pattern in Go.
+//
+//For example, consider a method that returns a value and an error:
+//    func FetchFromDB() (string, error)
+//
+//Then
+//    Eventually(FetchFromDB).Should(Equal("hasselhoff"))
+//
+//Will pass only if the the returned error is nil and the returned string passes the matcher.
+//
+//Eventually's default timeout is 1 second, and its default polling interval is 10ms
+func Eventually(actual interface{}, intervals ...interface{}) GomegaAsyncAssertion {
+	return EventuallyWithOffset(0, actual, intervals...)
+}
+
+//EventuallyWithOffset operates like Eventually but takes an additional
+//initial argument to indicate an offset in the call stack.  This is useful when building helper
+//functions that contain matchers.  To learn more, read about `ExpectWithOffset`.
+func EventuallyWithOffset(offset int, actual interface{}, intervals ...interface{}) GomegaAsyncAssertion {
+	if globalFailHandler == nil {
+		panic(nilFailHandlerPanic)
+	}
+	timeoutInterval := defaultEventuallyTimeout
+	pollingInterval := defaultEventuallyPollingInterval
+	if len(intervals) > 0 {
+		timeoutInterval = toDuration(intervals[0])
+	}
+	if len(intervals) > 1 {
+		pollingInterval = toDuration(intervals[1])
+	}
+	return asyncassertion.New(asyncassertion.AsyncAssertionTypeEventually, actual, globalFailHandler, timeoutInterval, pollingInterval, offset)
+}
+
+//Consistently wraps an actual value allowing assertions to be made on it.
+//The assertion is tried periodically and is required to pass for a period of time.
+//
+//Both the total time and polling interval are configurable as optional arguments:
+//The first optional argument is the duration that Consistently will run for
+//The second optional argument is the polling interval
+//
+//Both intervals can either be specified as time.Duration, parsable duration strings or as floats/integers.  In the
+//last case they are interpreted as seconds.
+//
+//If Consistently is passed an actual that is a function taking no arguments and returning at least one value,
+//then Consistently will call the function periodically and try the matcher against the function's first return value.
+//
+//If the function returns more than one value, then Consistently will pass the first value to the matcher and
+//assert that all other values are nil/zero.
+//This allows you to pass Consistently a function that returns a value and an error - a common pattern in Go.
+//
+//Consistently is useful in cases where you want to assert that something *does not happen* over a period of tiem.
+//For example, you want to assert that a goroutine does *not* send data down a channel.  In this case, you could:
+//
+//  Consistently(channel).ShouldNot(Receive())
+//
+//Consistently's default duration is 100ms, and its default polling interval is 10ms
+func Consistently(actual interface{}, intervals ...interface{}) GomegaAsyncAssertion {
+	return ConsistentlyWithOffset(0, actual, intervals...)
+}
+
+//ConsistentlyWithOffset operates like Consistnetly but takes an additional
+//initial argument to indicate an offset in the call stack.  This is useful when building helper
+//functions that contain matchers.  To learn more, read about `ExpectWithOffset`.
+func ConsistentlyWithOffset(offset int, actual interface{}, intervals ...interface{}) GomegaAsyncAssertion {
+	if globalFailHandler == nil {
+		panic(nilFailHandlerPanic)
+	}
+	timeoutInterval := defaultConsistentlyDuration
+	pollingInterval := defaultConsistentlyPollingInterval
+	if len(intervals) > 0 {
+		timeoutInterval = toDuration(intervals[0])
+	}
+	if len(intervals) > 1 {
+		pollingInterval = toDuration(intervals[1])
+	}
+	return asyncassertion.New(asyncassertion.AsyncAssertionTypeConsistently, actual, globalFailHandler, timeoutInterval, pollingInterval, offset)
+}
+
+//Set the default timeout duration for Eventually.  Eventually will repeatedly poll your condition until it succeeds, or until this timeout elapses.
+func SetDefaultEventuallyTimeout(t time.Duration) {
+	defaultEventuallyTimeout = t
+}
+
+//Set the default polling interval for Eventually.
+func SetDefaultEventuallyPollingInterval(t time.Duration) {
+	defaultEventuallyPollingInterval = t
+}
+
+//Set the default duration for Consistently.  Consistently will verify that your condition is satsified for this long.
+func SetDefaultConsistentlyDuration(t time.Duration) {
+	defaultConsistentlyDuration = t
+}
+
+//Set the default polling interval for Consistently.
+func SetDefaultConsistentlyPollingInterval(t time.Duration) {
+	defaultConsistentlyPollingInterval = t
+}
+
+//GomegaAsyncAssertion is returned by Eventually and Consistently and polls the actual value passed into Eventually against
+//the matcher passed to the Should and ShouldNot methods.
+//
+//Both Should and ShouldNot take a variadic optionalDescription argument.  This is passed on to
+//fmt.Sprintf() and is used to annotate failure messages.  This allows you to make your failure messages more
+//descriptive
+//
+//Both Should and ShouldNot return a boolean that is true if the assertion passed and false if it failed.
+//
+//Example:
+//
+//  Eventually(myChannel).Should(Receive(), "Something should have come down the pipe.")
+//  Consistently(myChannel).ShouldNot(Receive(), "Nothing should have come down the pipe.")
+type GomegaAsyncAssertion interface {
+	Should(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool
+	ShouldNot(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool
+}
+
+//GomegaAssertion is returned by Ω and Expect and compares the actual value to the matcher
+//passed to the Should/ShouldNot and To/ToNot/NotTo methods.
+//
+//Typically Should/ShouldNot are used with Ω and To/ToNot/NotTo are used with Expect
+//though this is not enforced.
+//
+//All methods take a variadic optionalDescription argument.  This is passed on to fmt.Sprintf()
+//and is used to annotate failure messages.
+//
+//All methods return a bool that is true if hte assertion passed and false if it failed.
+//
+//Example:
+//
+//   Ω(farm.HasCow()).Should(BeTrue(), "Farm %v should have a cow", farm)
+type GomegaAssertion interface {
+	Should(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool
+	ShouldNot(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool
+
+	To(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool
+	ToNot(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool
+	NotTo(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool
+}
+
+//OmegaMatcher is deprecated in favor of the better-named and better-organized types.GomegaMatcher but sticks around to support existing code that uses it
+type OmegaMatcher types.GomegaMatcher
+
+func toDuration(input interface{}) time.Duration {
+	duration, ok := input.(time.Duration)
+	if ok {
+		return duration
+	}
+
+	value := reflect.ValueOf(input)
+	kind := reflect.TypeOf(input).Kind()
+
+	if reflect.Int <= kind && kind <= reflect.Int64 {
+		return time.Duration(value.Int()) * time.Second
+	} else if reflect.Uint <= kind && kind <= reflect.Uint64 {
+		return time.Duration(value.Uint()) * time.Second
+	} else if reflect.Float32 <= kind && kind <= reflect.Float64 {
+		return time.Duration(value.Float() * float64(time.Second))
+	} else if reflect.String == kind {
+		duration, err := time.ParseDuration(value.String())
+		if err != nil {
+			panic(fmt.Sprintf("%#v is not a valid parsable duration string.", input))
+		}
+		return duration
+	}
+
+	panic(fmt.Sprintf("%v is not a valid interval.  Must be time.Duration, parsable duration string or a number.", input))
+}
diff --git a/vendor/github.com/onsi/gomega/internal/assertion/assertion.go b/vendor/github.com/onsi/gomega/internal/assertion/assertion.go
new file mode 100644
index 0000000..b73673f
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/internal/assertion/assertion.go
@@ -0,0 +1,98 @@
+package assertion
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/types"
+)
+
+type Assertion struct {
+	actualInput interface{}
+	fail        types.GomegaFailHandler
+	offset      int
+	extra       []interface{}
+}
+
+func New(actualInput interface{}, fail types.GomegaFailHandler, offset int, extra ...interface{}) *Assertion {
+	return &Assertion{
+		actualInput: actualInput,
+		fail:        fail,
+		offset:      offset,
+		extra:       extra,
+	}
+}
+
+func (assertion *Assertion) Should(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool {
+	return assertion.vetExtras(optionalDescription...) && assertion.match(matcher, true, optionalDescription...)
+}
+
+func (assertion *Assertion) ShouldNot(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool {
+	return assertion.vetExtras(optionalDescription...) && assertion.match(matcher, false, optionalDescription...)
+}
+
+func (assertion *Assertion) To(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool {
+	return assertion.vetExtras(optionalDescription...) && assertion.match(matcher, true, optionalDescription...)
+}
+
+func (assertion *Assertion) ToNot(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool {
+	return assertion.vetExtras(optionalDescription...) && assertion.match(matcher, false, optionalDescription...)
+}
+
+func (assertion *Assertion) NotTo(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool {
+	return assertion.vetExtras(optionalDescription...) && assertion.match(matcher, false, optionalDescription...)
+}
+
+func (assertion *Assertion) buildDescription(optionalDescription ...interface{}) string {
+	switch len(optionalDescription) {
+	case 0:
+		return ""
+	default:
+		return fmt.Sprintf(optionalDescription[0].(string), optionalDescription[1:]...) + "\n"
+	}
+}
+
+func (assertion *Assertion) match(matcher types.GomegaMatcher, desiredMatch bool, optionalDescription ...interface{}) bool {
+	matches, err := matcher.Match(assertion.actualInput)
+	description := assertion.buildDescription(optionalDescription...)
+	if err != nil {
+		assertion.fail(description+err.Error(), 2+assertion.offset)
+		return false
+	}
+	if matches != desiredMatch {
+		var message string
+		if desiredMatch {
+			message = matcher.FailureMessage(assertion.actualInput)
+		} else {
+			message = matcher.NegatedFailureMessage(assertion.actualInput)
+		}
+		assertion.fail(description+message, 2+assertion.offset)
+		return false
+	}
+
+	return true
+}
+
+func (assertion *Assertion) vetExtras(optionalDescription ...interface{}) bool {
+	success, message := vetExtras(assertion.extra)
+	if success {
+		return true
+	}
+
+	description := assertion.buildDescription(optionalDescription...)
+	assertion.fail(description+message, 2+assertion.offset)
+	return false
+}
+
+func vetExtras(extras []interface{}) (bool, string) {
+	for i, extra := range extras {
+		if extra != nil {
+			zeroValue := reflect.Zero(reflect.TypeOf(extra)).Interface()
+			if !reflect.DeepEqual(zeroValue, extra) {
+				message := fmt.Sprintf("Unexpected non-nil/non-zero extra argument at index %d:\n\t<%T>: %#v", i+1, extra, extra)
+				return false, message
+			}
+		}
+	}
+	return true, ""
+}
diff --git a/vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go b/vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go
new file mode 100644
index 0000000..7bbec43
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go
@@ -0,0 +1,197 @@
+package asyncassertion
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"time"
+
+	"github.com/onsi/gomega/types"
+)
+
+type AsyncAssertionType uint
+
+const (
+	AsyncAssertionTypeEventually AsyncAssertionType = iota
+	AsyncAssertionTypeConsistently
+)
+
+type AsyncAssertion struct {
+	asyncType       AsyncAssertionType
+	actualInput     interface{}
+	timeoutInterval time.Duration
+	pollingInterval time.Duration
+	fail            types.GomegaFailHandler
+	offset          int
+}
+
+func New(asyncType AsyncAssertionType, actualInput interface{}, fail types.GomegaFailHandler, timeoutInterval time.Duration, pollingInterval time.Duration, offset int) *AsyncAssertion {
+	actualType := reflect.TypeOf(actualInput)
+	if actualType.Kind() == reflect.Func {
+		if actualType.NumIn() != 0 || actualType.NumOut() == 0 {
+			panic("Expected a function with no arguments and one or more return values.")
+		}
+	}
+
+	return &AsyncAssertion{
+		asyncType:       asyncType,
+		actualInput:     actualInput,
+		fail:            fail,
+		timeoutInterval: timeoutInterval,
+		pollingInterval: pollingInterval,
+		offset:          offset,
+	}
+}
+
+func (assertion *AsyncAssertion) Should(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool {
+	return assertion.match(matcher, true, optionalDescription...)
+}
+
+func (assertion *AsyncAssertion) ShouldNot(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool {
+	return assertion.match(matcher, false, optionalDescription...)
+}
+
+func (assertion *AsyncAssertion) buildDescription(optionalDescription ...interface{}) string {
+	switch len(optionalDescription) {
+	case 0:
+		return ""
+	default:
+		return fmt.Sprintf(optionalDescription[0].(string), optionalDescription[1:]...) + "\n"
+	}
+}
+
+func (assertion *AsyncAssertion) actualInputIsAFunction() bool {
+	actualType := reflect.TypeOf(assertion.actualInput)
+	return actualType.Kind() == reflect.Func && actualType.NumIn() == 0 && actualType.NumOut() > 0
+}
+
+func (assertion *AsyncAssertion) pollActual() (interface{}, error) {
+	if assertion.actualInputIsAFunction() {
+		values := reflect.ValueOf(assertion.actualInput).Call([]reflect.Value{})
+
+		extras := []interface{}{}
+		for _, value := range values[1:] {
+			extras = append(extras, value.Interface())
+		}
+
+		success, message := vetExtras(extras)
+
+		if !success {
+			return nil, errors.New(message)
+		}
+
+		return values[0].Interface(), nil
+	}
+
+	return assertion.actualInput, nil
+}
+
+type oracleMatcher interface {
+	MatchMayChangeInTheFuture(actual interface{}) bool
+}
+
+func (assertion *AsyncAssertion) matcherMayChange(matcher types.GomegaMatcher, value interface{}) bool {
+	if assertion.actualInputIsAFunction() {
+		return true
+	}
+
+	oracleMatcher, ok := matcher.(oracleMatcher)
+	if !ok {
+		return true
+	}
+
+	return oracleMatcher.MatchMayChangeInTheFuture(value)
+}
+
+func (assertion *AsyncAssertion) match(matcher types.GomegaMatcher, desiredMatch bool, optionalDescription ...interface{}) bool {
+	timer := time.Now()
+	timeout := time.After(assertion.timeoutInterval)
+
+	description := assertion.buildDescription(optionalDescription...)
+
+	var matches bool
+	var err error
+	mayChange := true
+	value, err := assertion.pollActual()
+	if err == nil {
+		mayChange = assertion.matcherMayChange(matcher, value)
+		matches, err = matcher.Match(value)
+	}
+
+	fail := func(preamble string) {
+		errMsg := ""
+		message := ""
+		if err != nil {
+			errMsg = "Error: " + err.Error()
+		} else {
+			if desiredMatch {
+				message = matcher.FailureMessage(value)
+			} else {
+				message = matcher.NegatedFailureMessage(value)
+			}
+		}
+		assertion.fail(fmt.Sprintf("%s after %.3fs.\n%s%s%s", preamble, time.Since(timer).Seconds(), description, message, errMsg), 3+assertion.offset)
+	}
+
+	if assertion.asyncType == AsyncAssertionTypeEventually {
+		for {
+			if err == nil && matches == desiredMatch {
+				return true
+			}
+
+			if !mayChange {
+				fail("No future change is possible.  Bailing out early")
+				return false
+			}
+
+			select {
+			case <-time.After(assertion.pollingInterval):
+				value, err = assertion.pollActual()
+				if err == nil {
+					mayChange = assertion.matcherMayChange(matcher, value)
+					matches, err = matcher.Match(value)
+				}
+			case <-timeout:
+				fail("Timed out")
+				return false
+			}
+		}
+	} else if assertion.asyncType == AsyncAssertionTypeConsistently {
+		for {
+			if !(err == nil && matches == desiredMatch) {
+				fail("Failed")
+				return false
+			}
+
+			if !mayChange {
+				return true
+			}
+
+			select {
+			case <-time.After(assertion.pollingInterval):
+				value, err = assertion.pollActual()
+				if err == nil {
+					mayChange = assertion.matcherMayChange(matcher, value)
+					matches, err = matcher.Match(value)
+				}
+			case <-timeout:
+				return true
+			}
+		}
+	}
+
+	return false
+}
+
+func vetExtras(extras []interface{}) (bool, string) {
+	for i, extra := range extras {
+		if extra != nil {
+			zeroValue := reflect.Zero(reflect.TypeOf(extra)).Interface()
+			if !reflect.DeepEqual(zeroValue, extra) {
+				message := fmt.Sprintf("Unexpected non-nil/non-zero extra argument at index %d:\n\t<%T>: %#v", i+1, extra, extra)
+				return false, message
+			}
+		}
+	}
+	return true, ""
+}
diff --git a/vendor/github.com/onsi/gomega/internal/testingtsupport/testing_t_support.go b/vendor/github.com/onsi/gomega/internal/testingtsupport/testing_t_support.go
new file mode 100644
index 0000000..7871fd4
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/internal/testingtsupport/testing_t_support.go
@@ -0,0 +1,40 @@
+package testingtsupport
+
+import (
+	"regexp"
+	"runtime/debug"
+	"strings"
+
+	"github.com/onsi/gomega/types"
+)
+
+type gomegaTestingT interface {
+	Errorf(format string, args ...interface{})
+}
+
+func BuildTestingTGomegaFailHandler(t gomegaTestingT) types.GomegaFailHandler {
+	return func(message string, callerSkip ...int) {
+		skip := 1
+		if len(callerSkip) > 0 {
+			skip = callerSkip[0]
+		}
+		stackTrace := pruneStack(string(debug.Stack()), skip)
+		t.Errorf("\n%s\n%s", stackTrace, message)
+	}
+}
+
+func pruneStack(fullStackTrace string, skip int) string {
+	stack := strings.Split(fullStackTrace, "\n")
+	if len(stack) > 2*(skip+1) {
+		stack = stack[2*(skip+1):]
+	}
+	prunedStack := []string{}
+	re := regexp.MustCompile(`\/ginkgo\/|\/pkg\/testing\/|\/pkg\/runtime\/`)
+	for i := 0; i < len(stack)/2; i++ {
+		if !re.Match([]byte(stack[i*2])) {
+			prunedStack = append(prunedStack, stack[i*2])
+			prunedStack = append(prunedStack, stack[i*2+1])
+		}
+	}
+	return strings.Join(prunedStack, "\n")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers.go b/vendor/github.com/onsi/gomega/matchers.go
new file mode 100644
index 0000000..3b39677
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers.go
@@ -0,0 +1,345 @@
+package gomega
+
+import (
+	"time"
+
+	"github.com/onsi/gomega/matchers"
+	"github.com/onsi/gomega/types"
+)
+
+//Equal uses reflect.DeepEqual to compare actual with expected.  Equal is strict about
+//types when performing comparisons.
+//It is an error for both actual and expected to be nil.  Use BeNil() instead.
+func Equal(expected interface{}) types.GomegaMatcher {
+	return &matchers.EqualMatcher{
+		Expected: expected,
+	}
+}
+
+//BeEquivalentTo is more lax than Equal, allowing equality between different types.
+//This is done by converting actual to have the type of expected before
+//attempting equality with reflect.DeepEqual.
+//It is an error for actual and expected to be nil.  Use BeNil() instead.
+func BeEquivalentTo(expected interface{}) types.GomegaMatcher {
+	return &matchers.BeEquivalentToMatcher{
+		Expected: expected,
+	}
+}
+
+//BeNil succeeds if actual is nil
+func BeNil() types.GomegaMatcher {
+	return &matchers.BeNilMatcher{}
+}
+
+//BeTrue succeeds if actual is true
+func BeTrue() types.GomegaMatcher {
+	return &matchers.BeTrueMatcher{}
+}
+
+//BeFalse succeeds if actual is false
+func BeFalse() types.GomegaMatcher {
+	return &matchers.BeFalseMatcher{}
+}
+
+//HaveOccurred succeeds if actual is a non-nil error
+//The typical Go error checking pattern looks like:
+//    err := SomethingThatMightFail()
+//    Ω(err).ShouldNot(HaveOccurred())
+func HaveOccurred() types.GomegaMatcher {
+	return &matchers.HaveOccurredMatcher{}
+}
+
+//Succeed passes if actual is a nil error
+//Succeed is intended to be used with functions that return a single error value. Instead of
+//    err := SomethingThatMightFail()
+//    Ω(err).ShouldNot(HaveOccurred())
+//
+//You can write:
+//    Ω(SomethingThatMightFail()).Should(Succeed())
+//
+//It is a mistake to use Succeed with a function that has multiple return values.  Gomega's Ω and Expect
+//functions automatically trigger failure if any return values after the first return value are non-zero/non-nil.
+//This means that Ω(MultiReturnFunc()).ShouldNot(Succeed()) can never pass.
+func Succeed() types.GomegaMatcher {
+	return &matchers.SucceedMatcher{}
+}
+
+//MatchError succeeds if actual is a non-nil error that matches the passed in string/error.
+//
+//These are valid use-cases:
+//  Ω(err).Should(MatchError("an error")) //asserts that err.Error() == "an error"
+//  Ω(err).Should(MatchError(SomeError)) //asserts that err == SomeError (via reflect.DeepEqual)
+//
+//It is an error for err to be nil or an object that does not implement the Error interface
+func MatchError(expected interface{}) types.GomegaMatcher {
+	return &matchers.MatchErrorMatcher{
+		Expected: expected,
+	}
+}
+
+//BeClosed succeeds if actual is a closed channel.
+//It is an error to pass a non-channel to BeClosed, it is also an error to pass nil
+//
+//In order to check whether or not the channel is closed, Gomega must try to read from the channel
+//(even in the `ShouldNot(BeClosed())` case).  You should keep this in mind if you wish to make subsequent assertions about
+//values coming down the channel.
+//
+//Also, if you are testing that a *buffered* channel is closed you must first read all values out of the channel before
+//asserting that it is closed (it is not possible to detect that a buffered-channel has been closed until all its buffered values are read).
+//
+//Finally, as a corollary: it is an error to check whether or not a send-only channel is closed.
+func BeClosed() types.GomegaMatcher {
+	return &matchers.BeClosedMatcher{}
+}
+
+//Receive succeeds if there is a value to be received on actual.
+//Actual must be a channel (and cannot be a send-only channel) -- anything else is an error.
+//
+//Receive returns immediately and never blocks:
+//
+//- If there is nothing on the channel `c` then Ω(c).Should(Receive()) will fail and Ω(c).ShouldNot(Receive()) will pass.
+//
+//- If the channel `c` is closed then Ω(c).Should(Receive()) will fail and Ω(c).ShouldNot(Receive()) will pass.
+//
+//- If there is something on the channel `c` ready to be read, then Ω(c).Should(Receive()) will pass and Ω(c).ShouldNot(Receive()) will fail.
+//
+//If you have a go-routine running in the background that will write to channel `c` you can:
+//    Eventually(c).Should(Receive())
+//
+//This will timeout if nothing gets sent to `c` (you can modify the timeout interval as you normally do with `Eventually`)
+//
+//A similar use-case is to assert that no go-routine writes to a channel (for a period of time).  You can do this with `Consistently`:
+//    Consistently(c).ShouldNot(Receive())
+//
+//You can pass `Receive` a matcher.  If you do so, it will match the received object against the matcher.  For example:
+//    Ω(c).Should(Receive(Equal("foo")))
+//
+//When given a matcher, `Receive` will always fail if there is nothing to be received on the channel.
+//
+//Passing Receive a matcher is especially useful when paired with Eventually:
+//
+//    Eventually(c).Should(Receive(ContainSubstring("bar")))
+//
+//will repeatedly attempt to pull values out of `c` until a value matching "bar" is received.
+//
+//Finally, if you want to have a reference to the value *sent* to the channel you can pass the `Receive` matcher a pointer to a variable of the appropriate type:
+//    var myThing thing
+//    Eventually(thingChan).Should(Receive(&myThing))
+//    Ω(myThing.Sprocket).Should(Equal("foo"))
+//    Ω(myThing.IsValid()).Should(BeTrue())
+func Receive(args ...interface{}) types.GomegaMatcher {
+	var arg interface{}
+	if len(args) > 0 {
+		arg = args[0]
+	}
+
+	return &matchers.ReceiveMatcher{
+		Arg: arg,
+	}
+}
+
+//BeSent succeeds if a value can be sent to actual.
+//Actual must be a channel (and cannot be a receive-only channel) that can sent the type of the value passed into BeSent -- anything else is an error.
+//In addition, actual must not be closed.
+//
+//BeSent never blocks:
+//
+//- If the channel `c` is not ready to receive then Ω(c).Should(BeSent("foo")) will fail immediately
+//- If the channel `c` is eventually ready to receive then Eventually(c).Should(BeSent("foo")) will succeed.. presuming the channel becomes ready to receive  before Eventually's timeout
+//- If the channel `c` is closed then Ω(c).Should(BeSent("foo")) and Ω(c).ShouldNot(BeSent("foo")) will both fail immediately
+//
+//Of course, the value is actually sent to the channel.  The point of `BeSent` is less to make an assertion about the availability of the channel (which is typically an implementation detail that your test should not be concerned with).
+//Rather, the point of `BeSent` is to make it possible to easily and expressively write tests that can timeout on blocked channel sends.
+func BeSent(arg interface{}) types.GomegaMatcher {
+	return &matchers.BeSentMatcher{
+		Arg: arg,
+	}
+}
+
+//MatchRegexp succeeds if actual is a string or stringer that matches the
+//passed-in regexp.  Optional arguments can be provided to construct a regexp
+//via fmt.Sprintf().
+func MatchRegexp(regexp string, args ...interface{}) types.GomegaMatcher {
+	return &matchers.MatchRegexpMatcher{
+		Regexp: regexp,
+		Args:   args,
+	}
+}
+
+//ContainSubstring succeeds if actual is a string or stringer that contains the
+//passed-in regexp.  Optional arguments can be provided to construct the substring
+//via fmt.Sprintf().
+func ContainSubstring(substr string, args ...interface{}) types.GomegaMatcher {
+	return &matchers.ContainSubstringMatcher{
+		Substr: substr,
+		Args:   args,
+	}
+}
+
+//HavePrefix succeeds if actual is a string or stringer that contains the
+//passed-in string as a prefix.  Optional arguments can be provided to construct
+//via fmt.Sprintf().
+func HavePrefix(prefix string, args ...interface{}) types.GomegaMatcher {
+	return &matchers.HavePrefixMatcher{
+		Prefix: prefix,
+		Args:   args,
+	}
+}
+
+//HaveSuffix succeeds if actual is a string or stringer that contains the
+//passed-in string as a suffix.  Optional arguments can be provided to construct
+//via fmt.Sprintf().
+func HaveSuffix(suffix string, args ...interface{}) types.GomegaMatcher {
+	return &matchers.HaveSuffixMatcher{
+		Suffix: suffix,
+		Args:   args,
+	}
+}
+
+//MatchJSON succeeds if actual is a string or stringer of JSON that matches
+//the expected JSON.  The JSONs are decoded and the resulting objects are compared via
+//reflect.DeepEqual so things like key-ordering and whitespace shouldn't matter.
+func MatchJSON(json interface{}) types.GomegaMatcher {
+	return &matchers.MatchJSONMatcher{
+		JSONToMatch: json,
+	}
+}
+
+//BeEmpty succeeds if actual is empty.  Actual must be of type string, array, map, chan, or slice.
+func BeEmpty() types.GomegaMatcher {
+	return &matchers.BeEmptyMatcher{}
+}
+
+//HaveLen succeeds if actual has the passed-in length.  Actual must be of type string, array, map, chan, or slice.
+func HaveLen(count int) types.GomegaMatcher {
+	return &matchers.HaveLenMatcher{
+		Count: count,
+	}
+}
+
+//BeZero succeeds if actual is the zero value for its type or if actual is nil.
+func BeZero() types.GomegaMatcher {
+	return &matchers.BeZeroMatcher{}
+}
+
+//ContainElement succeeds if actual contains the passed in element.
+//By default ContainElement() uses Equal() to perform the match, however a
+//matcher can be passed in instead:
+//    Ω([]string{"Foo", "FooBar"}).Should(ContainElement(ContainSubstring("Bar")))
+//
+//Actual must be an array, slice or map.
+//For maps, ContainElement searches through the map's values.
+func ContainElement(element interface{}) types.GomegaMatcher {
+	return &matchers.ContainElementMatcher{
+		Element: element,
+	}
+}
+
+//ConsistOf succeeds if actual contains preciely the elements passed into the matcher.  The ordering of the elements does not matter.
+//By default ConsistOf() uses Equal() to match the elements, however custom matchers can be passed in instead.  Here are some examples:
+//
+//    Ω([]string{"Foo", "FooBar"}).Should(ConsistOf("FooBar", "Foo"))
+//    Ω([]string{"Foo", "FooBar"}).Should(ConsistOf(ContainSubstring("Bar"), "Foo"))
+//    Ω([]string{"Foo", "FooBar"}).Should(ConsistOf(ContainSubstring("Foo"), ContainSubstring("Foo")))
+//
+//Actual must be an array, slice or map.  For maps, ConsistOf matches against the map's values.
+//
+//You typically pass variadic arguments to ConsistOf (as in the examples above).  However, if you need to pass in a slice you can provided that it
+//is the only element passed in to ConsistOf:
+//
+//    Ω([]string{"Foo", "FooBar"}).Should(ConsistOf([]string{"FooBar", "Foo"}))
+//
+//Note that Go's type system does not allow you to write this as ConsistOf([]string{"FooBar", "Foo"}...) as []string and []interface{} are different types - hence the need for this special rule.
+func ConsistOf(elements ...interface{}) types.GomegaMatcher {
+	return &matchers.ConsistOfMatcher{
+		Elements: elements,
+	}
+}
+
+//HaveKey succeeds if actual is a map with the passed in key.
+//By default HaveKey uses Equal() to perform the match, however a
+//matcher can be passed in instead:
+//    Ω(map[string]string{"Foo": "Bar", "BazFoo": "Duck"}).Should(HaveKey(MatchRegexp(`.+Foo$`)))
+func HaveKey(key interface{}) types.GomegaMatcher {
+	return &matchers.HaveKeyMatcher{
+		Key: key,
+	}
+}
+
+//HaveKeyWithValue succeeds if actual is a map with the passed in key and value.
+//By default HaveKeyWithValue uses Equal() to perform the match, however a
+//matcher can be passed in instead:
+//    Ω(map[string]string{"Foo": "Bar", "BazFoo": "Duck"}).Should(HaveKeyWithValue("Foo", "Bar"))
+//    Ω(map[string]string{"Foo": "Bar", "BazFoo": "Duck"}).Should(HaveKeyWithValue(MatchRegexp(`.+Foo$`), "Bar"))
+func HaveKeyWithValue(key interface{}, value interface{}) types.GomegaMatcher {
+	return &matchers.HaveKeyWithValueMatcher{
+		Key:   key,
+		Value: value,
+	}
+}
+
+//BeNumerically performs numerical assertions in a type-agnostic way.
+//Actual and expected should be numbers, though the specific type of
+//number is irrelevant (floa32, float64, uint8, etc...).
+//
+//There are six, self-explanatory, supported comparators:
+//    Ω(1.0).Should(BeNumerically("==", 1))
+//    Ω(1.0).Should(BeNumerically("~", 0.999, 0.01))
+//    Ω(1.0).Should(BeNumerically(">", 0.9))
+//    Ω(1.0).Should(BeNumerically(">=", 1.0))
+//    Ω(1.0).Should(BeNumerically("<", 3))
+//    Ω(1.0).Should(BeNumerically("<=", 1.0))
+func BeNumerically(comparator string, compareTo ...interface{}) types.GomegaMatcher {
+	return &matchers.BeNumericallyMatcher{
+		Comparator: comparator,
+		CompareTo:  compareTo,
+	}
+}
+
+//BeTemporally compares time.Time's like BeNumerically
+//Actual and expected must be time.Time. The comparators are the same as for BeNumerically
+//    Ω(time.Now()).Should(BeTemporally(">", time.Time{}))
+//    Ω(time.Now()).Should(BeTemporally("~", time.Now(), time.Second))
+func BeTemporally(comparator string, compareTo time.Time, threshold ...time.Duration) types.GomegaMatcher {
+	return &matchers.BeTemporallyMatcher{
+		Comparator: comparator,
+		CompareTo:  compareTo,
+		Threshold:  threshold,
+	}
+}
+
+//BeAssignableToTypeOf succeeds if actual is assignable to the type of expected.
+//It will return an error when one of the values is nil.
+//	  Ω(0).Should(BeAssignableToTypeOf(0))         // Same values
+//	  Ω(5).Should(BeAssignableToTypeOf(-1))        // different values same type
+//	  Ω("foo").Should(BeAssignableToTypeOf("bar")) // different values same type
+//    Ω(struct{ Foo string }{}).Should(BeAssignableToTypeOf(struct{ Foo string }{}))
+func BeAssignableToTypeOf(expected interface{}) types.GomegaMatcher {
+	return &matchers.AssignableToTypeOfMatcher{
+		Expected: expected,
+	}
+}
+
+//Panic succeeds if actual is a function that, when invoked, panics.
+//Actual must be a function that takes no arguments and returns no results.
+func Panic() types.GomegaMatcher {
+	return &matchers.PanicMatcher{}
+}
+
+//BeAnExistingFile succeeds if a file exists.
+//Actual must be a string representing the abs path to the file being checked.
+func BeAnExistingFile() types.GomegaMatcher {
+	return &matchers.BeAnExistingFileMatcher{}
+}
+
+//BeARegularFile succeeds iff a file exists and is a regular file.
+//Actual must be a string representing the abs path to the file being checked.
+func BeARegularFile() types.GomegaMatcher {
+	return &matchers.BeARegularFileMatcher{}
+}
+
+//BeADirectory succeeds iff a file exists and is a directory.
+//Actual must be a string representing the abs path to the file being checked.
+func BeADirectory() types.GomegaMatcher {
+	return &matchers.BeADirectoryMatcher{}
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/assignable_to_type_of_matcher.go b/vendor/github.com/onsi/gomega/matchers/assignable_to_type_of_matcher.go
new file mode 100644
index 0000000..89a1fc2
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/assignable_to_type_of_matcher.go
@@ -0,0 +1,31 @@
+package matchers
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/format"
+)
+
+type AssignableToTypeOfMatcher struct {
+	Expected interface{}
+}
+
+func (matcher *AssignableToTypeOfMatcher) Match(actual interface{}) (success bool, err error) {
+	if actual == nil || matcher.Expected == nil {
+		return false, fmt.Errorf("Refusing to compare <nil> to <nil>.\nBe explicit and use BeNil() instead.  This is to avoid mistakes where both sides of an assertion are erroneously uninitialized.")
+	}
+
+	actualType := reflect.TypeOf(actual)
+	expectedType := reflect.TypeOf(matcher.Expected)
+
+	return actualType.AssignableTo(expectedType), nil
+}
+
+func (matcher *AssignableToTypeOfMatcher) FailureMessage(actual interface{}) string {
+	return format.Message(actual, fmt.Sprintf("to be assignable to the type: %T", matcher.Expected))
+}
+
+func (matcher *AssignableToTypeOfMatcher) NegatedFailureMessage(actual interface{}) string {
+	return format.Message(actual, fmt.Sprintf("not to be assignable to the type: %T", matcher.Expected))
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_a_directory.go b/vendor/github.com/onsi/gomega/matchers/be_a_directory.go
new file mode 100644
index 0000000..7b6975e
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_a_directory.go
@@ -0,0 +1,54 @@
+package matchers
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/onsi/gomega/format"
+)
+
+type notADirectoryError struct {
+	os.FileInfo
+}
+
+func (t notADirectoryError) Error() string {
+	fileInfo := os.FileInfo(t)
+	switch {
+	case fileInfo.Mode().IsRegular():
+		return "file is a regular file"
+	default:
+		return fmt.Sprintf("file mode is: %s", fileInfo.Mode().String())
+	}
+}
+
+type BeADirectoryMatcher struct {
+	expected interface{}
+	err      error
+}
+
+func (matcher *BeADirectoryMatcher) Match(actual interface{}) (success bool, err error) {
+	actualFilename, ok := actual.(string)
+	if !ok {
+		return false, fmt.Errorf("BeADirectoryMatcher matcher expects a file path")
+	}
+
+	fileInfo, err := os.Stat(actualFilename)
+	if err != nil {
+		matcher.err = err
+		return false, nil
+	}
+
+	if !fileInfo.Mode().IsDir() {
+		matcher.err = notADirectoryError{fileInfo}
+		return false, nil
+	}
+	return true, nil
+}
+
+func (matcher *BeADirectoryMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("to be a directory: %s", matcher.err))
+}
+
+func (matcher *BeADirectoryMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("not be a directory"))
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_a_regular_file.go b/vendor/github.com/onsi/gomega/matchers/be_a_regular_file.go
new file mode 100644
index 0000000..e239131
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_a_regular_file.go
@@ -0,0 +1,54 @@
+package matchers
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/onsi/gomega/format"
+)
+
+type notARegularFileError struct {
+	os.FileInfo
+}
+
+func (t notARegularFileError) Error() string {
+	fileInfo := os.FileInfo(t)
+	switch {
+	case fileInfo.IsDir():
+		return "file is a directory"
+	default:
+		return fmt.Sprintf("file mode is: %s", fileInfo.Mode().String())
+	}
+}
+
+type BeARegularFileMatcher struct {
+	expected interface{}
+	err      error
+}
+
+func (matcher *BeARegularFileMatcher) Match(actual interface{}) (success bool, err error) {
+	actualFilename, ok := actual.(string)
+	if !ok {
+		return false, fmt.Errorf("BeARegularFileMatcher matcher expects a file path")
+	}
+
+	fileInfo, err := os.Stat(actualFilename)
+	if err != nil {
+		matcher.err = err
+		return false, nil
+	}
+
+	if !fileInfo.Mode().IsRegular() {
+		matcher.err = notARegularFileError{fileInfo}
+		return false, nil
+	}
+	return true, nil
+}
+
+func (matcher *BeARegularFileMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("to be a regular file: %s", matcher.err))
+}
+
+func (matcher *BeARegularFileMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("not be a regular file"))
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_an_existing_file.go b/vendor/github.com/onsi/gomega/matchers/be_an_existing_file.go
new file mode 100644
index 0000000..d42eba2
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_an_existing_file.go
@@ -0,0 +1,38 @@
+package matchers
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/onsi/gomega/format"
+)
+
+type BeAnExistingFileMatcher struct {
+	expected interface{}
+}
+
+func (matcher *BeAnExistingFileMatcher) Match(actual interface{}) (success bool, err error) {
+	actualFilename, ok := actual.(string)
+	if !ok {
+		return false, fmt.Errorf("BeAnExistingFileMatcher matcher expects a file path")
+	}
+
+	if _, err = os.Stat(actualFilename); err != nil {
+		switch {
+		case os.IsNotExist(err):
+			return false, nil
+		default:
+			return false, err
+		}
+	}
+
+	return true, nil
+}
+
+func (matcher *BeAnExistingFileMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("to exist"))
+}
+
+func (matcher *BeAnExistingFileMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("not to exist"))
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_closed_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_closed_matcher.go
new file mode 100644
index 0000000..c1b4995
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_closed_matcher.go
@@ -0,0 +1,45 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"reflect"
+)
+
+type BeClosedMatcher struct {
+}
+
+func (matcher *BeClosedMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isChan(actual) {
+		return false, fmt.Errorf("BeClosed matcher expects a channel.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	channelType := reflect.TypeOf(actual)
+	channelValue := reflect.ValueOf(actual)
+
+	if channelType.ChanDir() == reflect.SendDir {
+		return false, fmt.Errorf("BeClosed matcher cannot determine if a send-only channel is closed or open.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	winnerIndex, _, open := reflect.Select([]reflect.SelectCase{
+		reflect.SelectCase{Dir: reflect.SelectRecv, Chan: channelValue},
+		reflect.SelectCase{Dir: reflect.SelectDefault},
+	})
+
+	var closed bool
+	if winnerIndex == 0 {
+		closed = !open
+	} else if winnerIndex == 1 {
+		closed = false
+	}
+
+	return closed, nil
+}
+
+func (matcher *BeClosedMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to be closed")
+}
+
+func (matcher *BeClosedMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to be open")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_empty_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_empty_matcher.go
new file mode 100644
index 0000000..55bdd7d
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_empty_matcher.go
@@ -0,0 +1,26 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+)
+
+type BeEmptyMatcher struct {
+}
+
+func (matcher *BeEmptyMatcher) Match(actual interface{}) (success bool, err error) {
+	length, ok := lengthOf(actual)
+	if !ok {
+		return false, fmt.Errorf("BeEmpty matcher expects a string/array/map/channel/slice.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	return length == 0, nil
+}
+
+func (matcher *BeEmptyMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to be empty")
+}
+
+func (matcher *BeEmptyMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to be empty")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_equivalent_to_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_equivalent_to_matcher.go
new file mode 100644
index 0000000..32a0c31
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_equivalent_to_matcher.go
@@ -0,0 +1,33 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"reflect"
+)
+
+type BeEquivalentToMatcher struct {
+	Expected interface{}
+}
+
+func (matcher *BeEquivalentToMatcher) Match(actual interface{}) (success bool, err error) {
+	if actual == nil && matcher.Expected == nil {
+		return false, fmt.Errorf("Both actual and expected must not be nil.")
+	}
+
+	convertedActual := actual
+
+	if actual != nil && matcher.Expected != nil && reflect.TypeOf(actual).ConvertibleTo(reflect.TypeOf(matcher.Expected)) {
+		convertedActual = reflect.ValueOf(actual).Convert(reflect.TypeOf(matcher.Expected)).Interface()
+	}
+
+	return reflect.DeepEqual(convertedActual, matcher.Expected), nil
+}
+
+func (matcher *BeEquivalentToMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to be equivalent to", matcher.Expected)
+}
+
+func (matcher *BeEquivalentToMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to be equivalent to", matcher.Expected)
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_false_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_false_matcher.go
new file mode 100644
index 0000000..0b224cb
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_false_matcher.go
@@ -0,0 +1,25 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+)
+
+type BeFalseMatcher struct {
+}
+
+func (matcher *BeFalseMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isBool(actual) {
+		return false, fmt.Errorf("Expected a boolean.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	return actual == false, nil
+}
+
+func (matcher *BeFalseMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to be false")
+}
+
+func (matcher *BeFalseMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to be false")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_nil_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_nil_matcher.go
new file mode 100644
index 0000000..7ee84fe
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_nil_matcher.go
@@ -0,0 +1,18 @@
+package matchers
+
+import "github.com/onsi/gomega/format"
+
+type BeNilMatcher struct {
+}
+
+func (matcher *BeNilMatcher) Match(actual interface{}) (success bool, err error) {
+	return isNil(actual), nil
+}
+
+func (matcher *BeNilMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to be nil")
+}
+
+func (matcher *BeNilMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to be nil")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_numerically_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_numerically_matcher.go
new file mode 100644
index 0000000..52f83fe
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_numerically_matcher.go
@@ -0,0 +1,119 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"math"
+)
+
+type BeNumericallyMatcher struct {
+	Comparator string
+	CompareTo  []interface{}
+}
+
+func (matcher *BeNumericallyMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("to be %s", matcher.Comparator), matcher.CompareTo[0])
+}
+
+func (matcher *BeNumericallyMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("not to be %s", matcher.Comparator), matcher.CompareTo[0])
+}
+
+func (matcher *BeNumericallyMatcher) Match(actual interface{}) (success bool, err error) {
+	if len(matcher.CompareTo) == 0 || len(matcher.CompareTo) > 2 {
+		return false, fmt.Errorf("BeNumerically requires 1 or 2 CompareTo arguments.  Got:\n%s", format.Object(matcher.CompareTo, 1))
+	}
+	if !isNumber(actual) {
+		return false, fmt.Errorf("Expected a number.  Got:\n%s", format.Object(actual, 1))
+	}
+	if !isNumber(matcher.CompareTo[0]) {
+		return false, fmt.Errorf("Expected a number.  Got:\n%s", format.Object(matcher.CompareTo[0], 1))
+	}
+	if len(matcher.CompareTo) == 2 && !isNumber(matcher.CompareTo[1]) {
+		return false, fmt.Errorf("Expected a number.  Got:\n%s", format.Object(matcher.CompareTo[0], 1))
+	}
+
+	switch matcher.Comparator {
+	case "==", "~", ">", ">=", "<", "<=":
+	default:
+		return false, fmt.Errorf("Unknown comparator: %s", matcher.Comparator)
+	}
+
+	if isFloat(actual) || isFloat(matcher.CompareTo[0]) {
+		var secondOperand float64 = 1e-8
+		if len(matcher.CompareTo) == 2 {
+			secondOperand = toFloat(matcher.CompareTo[1])
+		}
+		success = matcher.matchFloats(toFloat(actual), toFloat(matcher.CompareTo[0]), secondOperand)
+	} else if isInteger(actual) {
+		var secondOperand int64 = 0
+		if len(matcher.CompareTo) == 2 {
+			secondOperand = toInteger(matcher.CompareTo[1])
+		}
+		success = matcher.matchIntegers(toInteger(actual), toInteger(matcher.CompareTo[0]), secondOperand)
+	} else if isUnsignedInteger(actual) {
+		var secondOperand uint64 = 0
+		if len(matcher.CompareTo) == 2 {
+			secondOperand = toUnsignedInteger(matcher.CompareTo[1])
+		}
+		success = matcher.matchUnsignedIntegers(toUnsignedInteger(actual), toUnsignedInteger(matcher.CompareTo[0]), secondOperand)
+	} else {
+		return false, fmt.Errorf("Failed to compare:\n%s\n%s:\n%s", format.Object(actual, 1), matcher.Comparator, format.Object(matcher.CompareTo[0], 1))
+	}
+
+	return success, nil
+}
+
+func (matcher *BeNumericallyMatcher) matchIntegers(actual, compareTo, threshold int64) (success bool) {
+	switch matcher.Comparator {
+	case "==", "~":
+		diff := actual - compareTo
+		return -threshold <= diff && diff <= threshold
+	case ">":
+		return (actual > compareTo)
+	case ">=":
+		return (actual >= compareTo)
+	case "<":
+		return (actual < compareTo)
+	case "<=":
+		return (actual <= compareTo)
+	}
+	return false
+}
+
+func (matcher *BeNumericallyMatcher) matchUnsignedIntegers(actual, compareTo, threshold uint64) (success bool) {
+	switch matcher.Comparator {
+	case "==", "~":
+		if actual < compareTo {
+			actual, compareTo = compareTo, actual
+		}
+		return actual-compareTo <= threshold
+	case ">":
+		return (actual > compareTo)
+	case ">=":
+		return (actual >= compareTo)
+	case "<":
+		return (actual < compareTo)
+	case "<=":
+		return (actual <= compareTo)
+	}
+	return false
+}
+
+func (matcher *BeNumericallyMatcher) matchFloats(actual, compareTo, threshold float64) (success bool) {
+	switch matcher.Comparator {
+	case "~":
+		return math.Abs(actual-compareTo) <= threshold
+	case "==":
+		return (actual == compareTo)
+	case ">":
+		return (actual > compareTo)
+	case ">=":
+		return (actual >= compareTo)
+	case "<":
+		return (actual < compareTo)
+	case "<=":
+		return (actual <= compareTo)
+	}
+	return false
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_sent_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_sent_matcher.go
new file mode 100644
index 0000000..d7c3223
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_sent_matcher.go
@@ -0,0 +1,71 @@
+package matchers
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/format"
+)
+
+type BeSentMatcher struct {
+	Arg           interface{}
+	channelClosed bool
+}
+
+func (matcher *BeSentMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isChan(actual) {
+		return false, fmt.Errorf("BeSent expects a channel.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	channelType := reflect.TypeOf(actual)
+	channelValue := reflect.ValueOf(actual)
+
+	if channelType.ChanDir() == reflect.RecvDir {
+		return false, fmt.Errorf("BeSent matcher cannot be passed a receive-only channel.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	argType := reflect.TypeOf(matcher.Arg)
+	assignable := argType.AssignableTo(channelType.Elem())
+
+	if !assignable {
+		return false, fmt.Errorf("Cannot pass:\n%s to the channel:\n%s\nThe types don't match.", format.Object(matcher.Arg, 1), format.Object(actual, 1))
+	}
+
+	argValue := reflect.ValueOf(matcher.Arg)
+
+	defer func() {
+		if e := recover(); e != nil {
+			success = false
+			err = fmt.Errorf("Cannot send to a closed channel")
+			matcher.channelClosed = true
+		}
+	}()
+
+	winnerIndex, _, _ := reflect.Select([]reflect.SelectCase{
+		reflect.SelectCase{Dir: reflect.SelectSend, Chan: channelValue, Send: argValue},
+		reflect.SelectCase{Dir: reflect.SelectDefault},
+	})
+
+	var didSend bool
+	if winnerIndex == 0 {
+		didSend = true
+	}
+
+	return didSend, nil
+}
+
+func (matcher *BeSentMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to send:", matcher.Arg)
+}
+
+func (matcher *BeSentMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to send:", matcher.Arg)
+}
+
+func (matcher *BeSentMatcher) MatchMayChangeInTheFuture(actual interface{}) bool {
+	if !isChan(actual) {
+		return false
+	}
+
+	return !matcher.channelClosed
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_temporally_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_temporally_matcher.go
new file mode 100644
index 0000000..abda4eb
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_temporally_matcher.go
@@ -0,0 +1,65 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"time"
+)
+
+type BeTemporallyMatcher struct {
+	Comparator string
+	CompareTo  time.Time
+	Threshold  []time.Duration
+}
+
+func (matcher *BeTemporallyMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("to be %s", matcher.Comparator), matcher.CompareTo)
+}
+
+func (matcher *BeTemporallyMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, fmt.Sprintf("not to be %s", matcher.Comparator), matcher.CompareTo)
+}
+
+func (matcher *BeTemporallyMatcher) Match(actual interface{}) (bool, error) {
+	// predicate to test for time.Time type
+	isTime := func(t interface{}) bool {
+		_, ok := t.(time.Time)
+		return ok
+	}
+
+	if !isTime(actual) {
+		return false, fmt.Errorf("Expected a time.Time.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	switch matcher.Comparator {
+	case "==", "~", ">", ">=", "<", "<=":
+	default:
+		return false, fmt.Errorf("Unknown comparator: %s", matcher.Comparator)
+	}
+
+	var threshold = time.Millisecond
+	if len(matcher.Threshold) == 1 {
+		threshold = matcher.Threshold[0]
+	}
+
+	return matcher.matchTimes(actual.(time.Time), matcher.CompareTo, threshold), nil
+}
+
+func (matcher *BeTemporallyMatcher) matchTimes(actual, compareTo time.Time, threshold time.Duration) (success bool) {
+	switch matcher.Comparator {
+	case "==":
+		return actual.Equal(compareTo)
+	case "~":
+		diff := actual.Sub(compareTo)
+		return -threshold <= diff && diff <= threshold
+	case ">":
+		return actual.After(compareTo)
+	case ">=":
+		return !actual.Before(compareTo)
+	case "<":
+		return actual.Before(compareTo)
+	case "<=":
+		return !actual.After(compareTo)
+	}
+	return false
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_true_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_true_matcher.go
new file mode 100644
index 0000000..1275e5f
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_true_matcher.go
@@ -0,0 +1,25 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+)
+
+type BeTrueMatcher struct {
+}
+
+func (matcher *BeTrueMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isBool(actual) {
+		return false, fmt.Errorf("Expected a boolean.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	return actual.(bool), nil
+}
+
+func (matcher *BeTrueMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to be true")
+}
+
+func (matcher *BeTrueMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to be true")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/be_zero_matcher.go b/vendor/github.com/onsi/gomega/matchers/be_zero_matcher.go
new file mode 100644
index 0000000..b39c914
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/be_zero_matcher.go
@@ -0,0 +1,27 @@
+package matchers
+
+import (
+	"github.com/onsi/gomega/format"
+	"reflect"
+)
+
+type BeZeroMatcher struct {
+}
+
+func (matcher *BeZeroMatcher) Match(actual interface{}) (success bool, err error) {
+	if actual == nil {
+		return true, nil
+	}
+	zeroValue := reflect.Zero(reflect.TypeOf(actual)).Interface()
+
+	return reflect.DeepEqual(zeroValue, actual), nil
+
+}
+
+func (matcher *BeZeroMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to be zero-valued")
+}
+
+func (matcher *BeZeroMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to be zero-valued")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/consist_of.go b/vendor/github.com/onsi/gomega/matchers/consist_of.go
new file mode 100644
index 0000000..7b0e088
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/consist_of.go
@@ -0,0 +1,80 @@
+package matchers
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/format"
+	"github.com/onsi/gomega/matchers/support/goraph/bipartitegraph"
+)
+
+type ConsistOfMatcher struct {
+	Elements []interface{}
+}
+
+func (matcher *ConsistOfMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isArrayOrSlice(actual) && !isMap(actual) {
+		return false, fmt.Errorf("ConsistOf matcher expects an array/slice/map.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	elements := matcher.Elements
+	if len(matcher.Elements) == 1 && isArrayOrSlice(matcher.Elements[0]) {
+		elements = []interface{}{}
+		value := reflect.ValueOf(matcher.Elements[0])
+		for i := 0; i < value.Len(); i++ {
+			elements = append(elements, value.Index(i).Interface())
+		}
+	}
+
+	matchers := []interface{}{}
+	for _, element := range elements {
+		matcher, isMatcher := element.(omegaMatcher)
+		if !isMatcher {
+			matcher = &EqualMatcher{Expected: element}
+		}
+		matchers = append(matchers, matcher)
+	}
+
+	values := matcher.valuesOf(actual)
+
+	if len(values) != len(matchers) {
+		return false, nil
+	}
+
+	neighbours := func(v, m interface{}) (bool, error) {
+		match, err := m.(omegaMatcher).Match(v)
+		return match && err == nil, nil
+	}
+
+	bipartiteGraph, err := bipartitegraph.NewBipartiteGraph(values, matchers, neighbours)
+	if err != nil {
+		return false, err
+	}
+
+	return len(bipartiteGraph.LargestMatching()) == len(values), nil
+}
+
+func (matcher *ConsistOfMatcher) valuesOf(actual interface{}) []interface{} {
+	value := reflect.ValueOf(actual)
+	values := []interface{}{}
+	if isMap(actual) {
+		keys := value.MapKeys()
+		for i := 0; i < value.Len(); i++ {
+			values = append(values, value.MapIndex(keys[i]).Interface())
+		}
+	} else {
+		for i := 0; i < value.Len(); i++ {
+			values = append(values, value.Index(i).Interface())
+		}
+	}
+
+	return values
+}
+
+func (matcher *ConsistOfMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to consist of", matcher.Elements)
+}
+
+func (matcher *ConsistOfMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to consist of", matcher.Elements)
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/contain_element_matcher.go b/vendor/github.com/onsi/gomega/matchers/contain_element_matcher.go
new file mode 100644
index 0000000..4159335
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/contain_element_matcher.go
@@ -0,0 +1,56 @@
+package matchers
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/format"
+)
+
+type ContainElementMatcher struct {
+	Element interface{}
+}
+
+func (matcher *ContainElementMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isArrayOrSlice(actual) && !isMap(actual) {
+		return false, fmt.Errorf("ContainElement matcher expects an array/slice/map.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	elemMatcher, elementIsMatcher := matcher.Element.(omegaMatcher)
+	if !elementIsMatcher {
+		elemMatcher = &EqualMatcher{Expected: matcher.Element}
+	}
+
+	value := reflect.ValueOf(actual)
+	var keys []reflect.Value
+	if isMap(actual) {
+		keys = value.MapKeys()
+	}
+	var lastError error
+	for i := 0; i < value.Len(); i++ {
+		var success bool
+		var err error
+		if isMap(actual) {
+			success, err = elemMatcher.Match(value.MapIndex(keys[i]).Interface())
+		} else {
+			success, err = elemMatcher.Match(value.Index(i).Interface())
+		}
+		if err != nil {
+			lastError = err
+			continue
+		}
+		if success {
+			return true, nil
+		}
+	}
+
+	return false, lastError
+}
+
+func (matcher *ContainElementMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to contain element matching", matcher.Element)
+}
+
+func (matcher *ContainElementMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to contain element matching", matcher.Element)
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/contain_substring_matcher.go b/vendor/github.com/onsi/gomega/matchers/contain_substring_matcher.go
new file mode 100644
index 0000000..2e76089
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/contain_substring_matcher.go
@@ -0,0 +1,37 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"strings"
+)
+
+type ContainSubstringMatcher struct {
+	Substr string
+	Args   []interface{}
+}
+
+func (matcher *ContainSubstringMatcher) Match(actual interface{}) (success bool, err error) {
+	actualString, ok := toString(actual)
+	if !ok {
+		return false, fmt.Errorf("ContainSubstring matcher requires a string or stringer.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	return strings.Contains(actualString, matcher.stringToMatch()), nil
+}
+
+func (matcher *ContainSubstringMatcher) stringToMatch() string {
+	stringToMatch := matcher.Substr
+	if len(matcher.Args) > 0 {
+		stringToMatch = fmt.Sprintf(matcher.Substr, matcher.Args...)
+	}
+	return stringToMatch
+}
+
+func (matcher *ContainSubstringMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to contain substring", matcher.stringToMatch())
+}
+
+func (matcher *ContainSubstringMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to contain substring", matcher.stringToMatch())
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/equal_matcher.go b/vendor/github.com/onsi/gomega/matchers/equal_matcher.go
new file mode 100644
index 0000000..d186597
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/equal_matcher.go
@@ -0,0 +1,27 @@
+package matchers
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/format"
+)
+
+type EqualMatcher struct {
+	Expected interface{}
+}
+
+func (matcher *EqualMatcher) Match(actual interface{}) (success bool, err error) {
+	if actual == nil && matcher.Expected == nil {
+		return false, fmt.Errorf("Refusing to compare <nil> to <nil>.\nBe explicit and use BeNil() instead.  This is to avoid mistakes where both sides of an assertion are erroneously uninitialized.")
+	}
+	return reflect.DeepEqual(actual, matcher.Expected), nil
+}
+
+func (matcher *EqualMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to equal", matcher.Expected)
+}
+
+func (matcher *EqualMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to equal", matcher.Expected)
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/have_key_matcher.go b/vendor/github.com/onsi/gomega/matchers/have_key_matcher.go
new file mode 100644
index 0000000..5701ba6
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/have_key_matcher.go
@@ -0,0 +1,53 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"reflect"
+)
+
+type HaveKeyMatcher struct {
+	Key interface{}
+}
+
+func (matcher *HaveKeyMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isMap(actual) {
+		return false, fmt.Errorf("HaveKey matcher expects a map.  Got:%s", format.Object(actual, 1))
+	}
+
+	keyMatcher, keyIsMatcher := matcher.Key.(omegaMatcher)
+	if !keyIsMatcher {
+		keyMatcher = &EqualMatcher{Expected: matcher.Key}
+	}
+
+	keys := reflect.ValueOf(actual).MapKeys()
+	for i := 0; i < len(keys); i++ {
+		success, err := keyMatcher.Match(keys[i].Interface())
+		if err != nil {
+			return false, fmt.Errorf("HaveKey's key matcher failed with:\n%s%s", format.Indent, err.Error())
+		}
+		if success {
+			return true, nil
+		}
+	}
+
+	return false, nil
+}
+
+func (matcher *HaveKeyMatcher) FailureMessage(actual interface{}) (message string) {
+	switch matcher.Key.(type) {
+	case omegaMatcher:
+		return format.Message(actual, "to have key matching", matcher.Key)
+	default:
+		return format.Message(actual, "to have key", matcher.Key)
+	}
+}
+
+func (matcher *HaveKeyMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	switch matcher.Key.(type) {
+	case omegaMatcher:
+		return format.Message(actual, "not to have key matching", matcher.Key)
+	default:
+		return format.Message(actual, "not to have key", matcher.Key)
+	}
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/have_key_with_value_matcher.go b/vendor/github.com/onsi/gomega/matchers/have_key_with_value_matcher.go
new file mode 100644
index 0000000..464ac18
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/have_key_with_value_matcher.go
@@ -0,0 +1,73 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"reflect"
+)
+
+type HaveKeyWithValueMatcher struct {
+	Key   interface{}
+	Value interface{}
+}
+
+func (matcher *HaveKeyWithValueMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isMap(actual) {
+		return false, fmt.Errorf("HaveKeyWithValue matcher expects a map.  Got:%s", format.Object(actual, 1))
+	}
+
+	keyMatcher, keyIsMatcher := matcher.Key.(omegaMatcher)
+	if !keyIsMatcher {
+		keyMatcher = &EqualMatcher{Expected: matcher.Key}
+	}
+
+	valueMatcher, valueIsMatcher := matcher.Value.(omegaMatcher)
+	if !valueIsMatcher {
+		valueMatcher = &EqualMatcher{Expected: matcher.Value}
+	}
+
+	keys := reflect.ValueOf(actual).MapKeys()
+	for i := 0; i < len(keys); i++ {
+		success, err := keyMatcher.Match(keys[i].Interface())
+		if err != nil {
+			return false, fmt.Errorf("HaveKeyWithValue's key matcher failed with:\n%s%s", format.Indent, err.Error())
+		}
+		if success {
+			actualValue := reflect.ValueOf(actual).MapIndex(keys[i])
+			success, err := valueMatcher.Match(actualValue.Interface())
+			if err != nil {
+				return false, fmt.Errorf("HaveKeyWithValue's value matcher failed with:\n%s%s", format.Indent, err.Error())
+			}
+			return success, nil
+		}
+	}
+
+	return false, nil
+}
+
+func (matcher *HaveKeyWithValueMatcher) FailureMessage(actual interface{}) (message string) {
+	str := "to have {key: value}"
+	if _, ok := matcher.Key.(omegaMatcher); ok {
+		str += " matching"
+	} else if _, ok := matcher.Value.(omegaMatcher); ok {
+		str += " matching"
+	}
+
+	expect := make(map[interface{}]interface{}, 1)
+	expect[matcher.Key] = matcher.Value
+	return format.Message(actual, str, expect)
+}
+
+func (matcher *HaveKeyWithValueMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	kStr := "not to have key"
+	if _, ok := matcher.Key.(omegaMatcher); ok {
+		kStr = "not to have key matching"
+	}
+
+	vStr := "or that key's value not be"
+	if _, ok := matcher.Value.(omegaMatcher); ok {
+		vStr = "or to have that key's value not matching"
+	}
+
+	return format.Message(actual, kStr, matcher.Key, vStr, matcher.Value)
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/have_len_matcher.go b/vendor/github.com/onsi/gomega/matchers/have_len_matcher.go
new file mode 100644
index 0000000..a183775
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/have_len_matcher.go
@@ -0,0 +1,27 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+)
+
+type HaveLenMatcher struct {
+	Count int
+}
+
+func (matcher *HaveLenMatcher) Match(actual interface{}) (success bool, err error) {
+	length, ok := lengthOf(actual)
+	if !ok {
+		return false, fmt.Errorf("HaveLen matcher expects a string/array/map/channel/slice.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	return length == matcher.Count, nil
+}
+
+func (matcher *HaveLenMatcher) FailureMessage(actual interface{}) (message string) {
+	return fmt.Sprintf("Expected\n%s\nto have length %d", format.Object(actual, 1), matcher.Count)
+}
+
+func (matcher *HaveLenMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return fmt.Sprintf("Expected\n%s\nnot to have length %d", format.Object(actual, 1), matcher.Count)
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/have_occurred_matcher.go b/vendor/github.com/onsi/gomega/matchers/have_occurred_matcher.go
new file mode 100644
index 0000000..c96dfee
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/have_occurred_matcher.go
@@ -0,0 +1,29 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+)
+
+type HaveOccurredMatcher struct {
+}
+
+func (matcher *HaveOccurredMatcher) Match(actual interface{}) (success bool, err error) {
+	if isNil(actual) {
+		return false, nil
+	}
+
+	if isError(actual) {
+		return true, nil
+	}
+
+	return false, fmt.Errorf("Expected an error.  Got:\n%s", format.Object(actual, 1))
+}
+
+func (matcher *HaveOccurredMatcher) FailureMessage(actual interface{}) (message string) {
+	return fmt.Sprintf("Expected an error to have occurred.  Got:\n%s", format.Object(actual, 1))
+}
+
+func (matcher *HaveOccurredMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return fmt.Sprintf("Expected error:\n%s\n%s\n%s", format.Object(actual, 1), format.IndentString(actual.(error).Error(), 1), "not to have occurred")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/have_prefix_matcher.go b/vendor/github.com/onsi/gomega/matchers/have_prefix_matcher.go
new file mode 100644
index 0000000..8b63a89
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/have_prefix_matcher.go
@@ -0,0 +1,35 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+)
+
+type HavePrefixMatcher struct {
+	Prefix string
+	Args   []interface{}
+}
+
+func (matcher *HavePrefixMatcher) Match(actual interface{}) (success bool, err error) {
+	actualString, ok := toString(actual)
+	if !ok {
+		return false, fmt.Errorf("HavePrefix matcher requires a string or stringer.  Got:\n%s", format.Object(actual, 1))
+	}
+	prefix := matcher.prefix()
+	return len(actualString) >= len(prefix) && actualString[0:len(prefix)] == prefix, nil
+}
+
+func (matcher *HavePrefixMatcher) prefix() string {
+	if len(matcher.Args) > 0 {
+		return fmt.Sprintf(matcher.Prefix, matcher.Args...)
+	}
+	return matcher.Prefix
+}
+
+func (matcher *HavePrefixMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to have prefix", matcher.prefix())
+}
+
+func (matcher *HavePrefixMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to have prefix", matcher.prefix())
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/have_suffix_matcher.go b/vendor/github.com/onsi/gomega/matchers/have_suffix_matcher.go
new file mode 100644
index 0000000..eb1b284
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/have_suffix_matcher.go
@@ -0,0 +1,35 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+)
+
+type HaveSuffixMatcher struct {
+	Suffix string
+	Args   []interface{}
+}
+
+func (matcher *HaveSuffixMatcher) Match(actual interface{}) (success bool, err error) {
+	actualString, ok := toString(actual)
+	if !ok {
+		return false, fmt.Errorf("HaveSuffix matcher requires a string or stringer.  Got:\n%s", format.Object(actual, 1))
+	}
+	suffix := matcher.suffix()
+	return len(actualString) >= len(suffix) && actualString[len(actualString) - len(suffix):] == suffix, nil
+}
+
+func (matcher *HaveSuffixMatcher) suffix() string {
+	if len(matcher.Args) > 0 {
+		return fmt.Sprintf(matcher.Suffix, matcher.Args...)
+	}
+	return matcher.Suffix
+}
+
+func (matcher *HaveSuffixMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to have suffix", matcher.suffix())
+}
+
+func (matcher *HaveSuffixMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to have suffix", matcher.suffix())
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/match_error_matcher.go b/vendor/github.com/onsi/gomega/matchers/match_error_matcher.go
new file mode 100644
index 0000000..03cdf04
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/match_error_matcher.go
@@ -0,0 +1,50 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"reflect"
+)
+
+type MatchErrorMatcher struct {
+	Expected interface{}
+}
+
+func (matcher *MatchErrorMatcher) Match(actual interface{}) (success bool, err error) {
+	if isNil(actual) {
+		return false, fmt.Errorf("Expected an error, got nil")
+	}
+
+	if !isError(actual) {
+		return false, fmt.Errorf("Expected an error.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	actualErr := actual.(error)
+
+	if isString(matcher.Expected) {
+		return reflect.DeepEqual(actualErr.Error(), matcher.Expected), nil
+	}
+
+	if isError(matcher.Expected) {
+		return reflect.DeepEqual(actualErr, matcher.Expected), nil
+	}
+
+	var subMatcher omegaMatcher
+	var hasSubMatcher bool
+	if matcher.Expected != nil {
+		subMatcher, hasSubMatcher = (matcher.Expected).(omegaMatcher)
+		if hasSubMatcher {
+			return subMatcher.Match(actualErr.Error())
+		}
+	}
+
+	return false, fmt.Errorf("MatchError must be passed an error, string, or Matcher that can match on strings.  Got:\n%s", format.Object(matcher.Expected, 1))
+}
+
+func (matcher *MatchErrorMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to match error", matcher.Expected)
+}
+
+func (matcher *MatchErrorMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to match error", matcher.Expected)
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/match_json_matcher.go b/vendor/github.com/onsi/gomega/matchers/match_json_matcher.go
new file mode 100644
index 0000000..efc5e15
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/match_json_matcher.go
@@ -0,0 +1,61 @@
+package matchers
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"reflect"
+)
+
+type MatchJSONMatcher struct {
+	JSONToMatch interface{}
+}
+
+func (matcher *MatchJSONMatcher) Match(actual interface{}) (success bool, err error) {
+	actualString, expectedString, err := matcher.prettyPrint(actual)
+	if err != nil {
+		return false, err
+	}
+
+	var aval interface{}
+	var eval interface{}
+
+	// this is guarded by prettyPrint
+	json.Unmarshal([]byte(actualString), &aval)
+	json.Unmarshal([]byte(expectedString), &eval)
+
+	return reflect.DeepEqual(aval, eval), nil
+}
+
+func (matcher *MatchJSONMatcher) FailureMessage(actual interface{}) (message string) {
+	actualString, expectedString, _ := matcher.prettyPrint(actual)
+	return format.Message(actualString, "to match JSON of", expectedString)
+}
+
+func (matcher *MatchJSONMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	actualString, expectedString, _ := matcher.prettyPrint(actual)
+	return format.Message(actualString, "not to match JSON of", expectedString)
+}
+
+func (matcher *MatchJSONMatcher) prettyPrint(actual interface{}) (actualFormatted, expectedFormatted string, err error) {
+	actualString, aok := toString(actual)
+	expectedString, eok := toString(matcher.JSONToMatch)
+
+	if !(aok && eok) {
+		return "", "", fmt.Errorf("MatchJSONMatcher matcher requires a string or stringer.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	abuf := new(bytes.Buffer)
+	ebuf := new(bytes.Buffer)
+
+	if err := json.Indent(abuf, []byte(actualString), "", "  "); err != nil {
+		return "", "", err
+	}
+
+	if err := json.Indent(ebuf, []byte(expectedString), "", "  "); err != nil {
+		return "", "", err
+	}
+
+	return abuf.String(), ebuf.String(), nil
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/match_regexp_matcher.go b/vendor/github.com/onsi/gomega/matchers/match_regexp_matcher.go
new file mode 100644
index 0000000..7ca79a1
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/match_regexp_matcher.go
@@ -0,0 +1,42 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"regexp"
+)
+
+type MatchRegexpMatcher struct {
+	Regexp string
+	Args   []interface{}
+}
+
+func (matcher *MatchRegexpMatcher) Match(actual interface{}) (success bool, err error) {
+	actualString, ok := toString(actual)
+	if !ok {
+		return false, fmt.Errorf("RegExp matcher requires a string or stringer.\nGot:%s", format.Object(actual, 1))
+	}
+
+	match, err := regexp.Match(matcher.regexp(), []byte(actualString))
+	if err != nil {
+		return false, fmt.Errorf("RegExp match failed to compile with error:\n\t%s", err.Error())
+	}
+
+	return match, nil
+}
+
+func (matcher *MatchRegexpMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to match regular expression", matcher.regexp())
+}
+
+func (matcher *MatchRegexpMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to match regular expression", matcher.regexp())
+}
+
+func (matcher *MatchRegexpMatcher) regexp() string {
+	re := matcher.Regexp
+	if len(matcher.Args) > 0 {
+		re = fmt.Sprintf(matcher.Regexp, matcher.Args...)
+	}
+	return re
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/panic_matcher.go b/vendor/github.com/onsi/gomega/matchers/panic_matcher.go
new file mode 100644
index 0000000..75ab251
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/panic_matcher.go
@@ -0,0 +1,42 @@
+package matchers
+
+import (
+	"fmt"
+	"github.com/onsi/gomega/format"
+	"reflect"
+)
+
+type PanicMatcher struct{}
+
+func (matcher *PanicMatcher) Match(actual interface{}) (success bool, err error) {
+	if actual == nil {
+		return false, fmt.Errorf("PanicMatcher expects a non-nil actual.")
+	}
+
+	actualType := reflect.TypeOf(actual)
+	if actualType.Kind() != reflect.Func {
+		return false, fmt.Errorf("PanicMatcher expects a function.  Got:\n%s", format.Object(actual, 1))
+	}
+	if !(actualType.NumIn() == 0 && actualType.NumOut() == 0) {
+		return false, fmt.Errorf("PanicMatcher expects a function with no arguments and no return value.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	success = false
+	defer func() {
+		if e := recover(); e != nil {
+			success = true
+		}
+	}()
+
+	reflect.ValueOf(actual).Call([]reflect.Value{})
+
+	return
+}
+
+func (matcher *PanicMatcher) FailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "to panic")
+}
+
+func (matcher *PanicMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return format.Message(actual, "not to panic")
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/receive_matcher.go b/vendor/github.com/onsi/gomega/matchers/receive_matcher.go
new file mode 100644
index 0000000..7a8c2cd
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/receive_matcher.go
@@ -0,0 +1,126 @@
+package matchers
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/onsi/gomega/format"
+)
+
+type ReceiveMatcher struct {
+	Arg           interface{}
+	receivedValue reflect.Value
+	channelClosed bool
+}
+
+func (matcher *ReceiveMatcher) Match(actual interface{}) (success bool, err error) {
+	if !isChan(actual) {
+		return false, fmt.Errorf("ReceiveMatcher expects a channel.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	channelType := reflect.TypeOf(actual)
+	channelValue := reflect.ValueOf(actual)
+
+	if channelType.ChanDir() == reflect.SendDir {
+		return false, fmt.Errorf("ReceiveMatcher matcher cannot be passed a send-only channel.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	var subMatcher omegaMatcher
+	var hasSubMatcher bool
+
+	if matcher.Arg != nil {
+		subMatcher, hasSubMatcher = (matcher.Arg).(omegaMatcher)
+		if !hasSubMatcher {
+			argType := reflect.TypeOf(matcher.Arg)
+			if argType.Kind() != reflect.Ptr {
+				return false, fmt.Errorf("Cannot assign a value from the channel:\n%s\nTo:\n%s\nYou need to pass a pointer!", format.Object(actual, 1), format.Object(matcher.Arg, 1))
+			}
+
+			assignable := channelType.Elem().AssignableTo(argType.Elem())
+			if !assignable {
+				return false, fmt.Errorf("Cannot assign a value from the channel:\n%s\nTo:\n%s", format.Object(actual, 1), format.Object(matcher.Arg, 1))
+			}
+		}
+	}
+
+	winnerIndex, value, open := reflect.Select([]reflect.SelectCase{
+		reflect.SelectCase{Dir: reflect.SelectRecv, Chan: channelValue},
+		reflect.SelectCase{Dir: reflect.SelectDefault},
+	})
+
+	var closed bool
+	var didReceive bool
+	if winnerIndex == 0 {
+		closed = !open
+		didReceive = open
+	}
+	matcher.channelClosed = closed
+
+	if closed {
+		return false, nil
+	}
+
+	if hasSubMatcher {
+		if didReceive {
+			matcher.receivedValue = value
+			return subMatcher.Match(matcher.receivedValue.Interface())
+		} else {
+			return false, nil
+		}
+	}
+
+	if didReceive {
+		if matcher.Arg != nil {
+			outValue := reflect.ValueOf(matcher.Arg)
+			reflect.Indirect(outValue).Set(value)
+		}
+
+		return true, nil
+	} else {
+		return false, nil
+	}
+}
+
+func (matcher *ReceiveMatcher) FailureMessage(actual interface{}) (message string) {
+	subMatcher, hasSubMatcher := (matcher.Arg).(omegaMatcher)
+
+	closedAddendum := ""
+	if matcher.channelClosed {
+		closedAddendum = " The channel is closed."
+	}
+
+	if hasSubMatcher {
+		if matcher.receivedValue.IsValid() {
+			return subMatcher.FailureMessage(matcher.receivedValue.Interface())
+		}
+		return "When passed a matcher, ReceiveMatcher's channel *must* receive something."
+	} else {
+		return format.Message(actual, "to receive something."+closedAddendum)
+	}
+}
+
+func (matcher *ReceiveMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	subMatcher, hasSubMatcher := (matcher.Arg).(omegaMatcher)
+
+	closedAddendum := ""
+	if matcher.channelClosed {
+		closedAddendum = " The channel is closed."
+	}
+
+	if hasSubMatcher {
+		if matcher.receivedValue.IsValid() {
+			return subMatcher.NegatedFailureMessage(matcher.receivedValue.Interface())
+		}
+		return "When passed a matcher, ReceiveMatcher's channel *must* receive something."
+	} else {
+		return format.Message(actual, "not to receive anything."+closedAddendum)
+	}
+}
+
+func (matcher *ReceiveMatcher) MatchMayChangeInTheFuture(actual interface{}) bool {
+	if !isChan(actual) {
+		return false
+	}
+
+	return !matcher.channelClosed
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/succeed_matcher.go b/vendor/github.com/onsi/gomega/matchers/succeed_matcher.go
new file mode 100644
index 0000000..f7dd853
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/succeed_matcher.go
@@ -0,0 +1,30 @@
+package matchers
+
+import (
+	"fmt"
+
+	"github.com/onsi/gomega/format"
+)
+
+type SucceedMatcher struct {
+}
+
+func (matcher *SucceedMatcher) Match(actual interface{}) (success bool, err error) {
+	if actual == nil {
+		return true, nil
+	}
+
+	if isError(actual) {
+		return false, nil
+	}
+
+	return false, fmt.Errorf("Expected an error-type.  Got:\n%s", format.Object(actual, 1))
+}
+
+func (matcher *SucceedMatcher) FailureMessage(actual interface{}) (message string) {
+	return fmt.Sprintf("Expected success, but got an error:\n%s\n%s", format.Object(actual, 1), format.IndentString(actual.(error).Error(), 1))
+}
+
+func (matcher *SucceedMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return "Expected failure, but got no error."
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/support/goraph/bipartitegraph/bipartitegraph.go b/vendor/github.com/onsi/gomega/matchers/support/goraph/bipartitegraph/bipartitegraph.go
new file mode 100644
index 0000000..119d21e
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/support/goraph/bipartitegraph/bipartitegraph.go
@@ -0,0 +1,41 @@
+package bipartitegraph
+
+import "errors"
+import "fmt"
+
+import . "github.com/onsi/gomega/matchers/support/goraph/node"
+import . "github.com/onsi/gomega/matchers/support/goraph/edge"
+
+type BipartiteGraph struct {
+	Left  NodeOrderedSet
+	Right NodeOrderedSet
+	Edges EdgeSet
+}
+
+func NewBipartiteGraph(leftValues, rightValues []interface{}, neighbours func(interface{}, interface{}) (bool, error)) (*BipartiteGraph, error) {
+	left := NodeOrderedSet{}
+	for i, _ := range leftValues {
+		left = append(left, Node{i})
+	}
+
+	right := NodeOrderedSet{}
+	for j, _ := range rightValues {
+		right = append(right, Node{j + len(left)})
+	}
+
+	edges := EdgeSet{}
+	for i, leftValue := range leftValues {
+		for j, rightValue := range rightValues {
+			neighbours, err := neighbours(leftValue, rightValue)
+			if err != nil {
+				return nil, errors.New(fmt.Sprintf("error determining adjacency for %v and %v: %s", leftValue, rightValue, err.Error()))
+			}
+
+			if neighbours {
+				edges = append(edges, Edge{left[i], right[j]})
+			}
+		}
+	}
+
+	return &BipartiteGraph{left, right, edges}, nil
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/support/goraph/bipartitegraph/bipartitegraphmatching.go b/vendor/github.com/onsi/gomega/matchers/support/goraph/bipartitegraph/bipartitegraphmatching.go
new file mode 100644
index 0000000..32529c5
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/support/goraph/bipartitegraph/bipartitegraphmatching.go
@@ -0,0 +1,161 @@
+package bipartitegraph
+
+import . "github.com/onsi/gomega/matchers/support/goraph/node"
+import . "github.com/onsi/gomega/matchers/support/goraph/edge"
+import "github.com/onsi/gomega/matchers/support/goraph/util"
+
+func (bg *BipartiteGraph) LargestMatching() (matching EdgeSet) {
+	paths := bg.maximalDisjointSLAPCollection(matching)
+
+	for len(paths) > 0 {
+		for _, path := range paths {
+			matching = matching.SymmetricDifference(path)
+		}
+		paths = bg.maximalDisjointSLAPCollection(matching)
+	}
+
+	return
+}
+
+func (bg *BipartiteGraph) maximalDisjointSLAPCollection(matching EdgeSet) (result []EdgeSet) {
+	guideLayers := bg.createSLAPGuideLayers(matching)
+	if len(guideLayers) == 0 {
+		return
+	}
+
+	used := make(map[Node]bool)
+
+	for _, u := range guideLayers[len(guideLayers)-1] {
+		slap, found := bg.findDisjointSLAP(u, matching, guideLayers, used)
+		if found {
+			for _, edge := range slap {
+				used[edge.Node1] = true
+				used[edge.Node2] = true
+			}
+			result = append(result, slap)
+		}
+	}
+
+	return
+}
+
+func (bg *BipartiteGraph) findDisjointSLAP(
+	start Node,
+	matching EdgeSet,
+	guideLayers []NodeOrderedSet,
+	used map[Node]bool,
+) ([]Edge, bool) {
+	return bg.findDisjointSLAPHelper(start, EdgeSet{}, len(guideLayers)-1, matching, guideLayers, used)
+}
+
+func (bg *BipartiteGraph) findDisjointSLAPHelper(
+	currentNode Node,
+	currentSLAP EdgeSet,
+	currentLevel int,
+	matching EdgeSet,
+	guideLayers []NodeOrderedSet,
+	used map[Node]bool,
+) (EdgeSet, bool) {
+	used[currentNode] = true
+
+	if currentLevel == 0 {
+		return currentSLAP, true
+	}
+
+	for _, nextNode := range guideLayers[currentLevel-1] {
+		if used[nextNode] {
+			continue
+		}
+
+		edge, found := bg.Edges.FindByNodes(currentNode, nextNode)
+		if !found {
+			continue
+		}
+
+		if matching.Contains(edge) == util.Odd(currentLevel) {
+			continue
+		}
+
+		currentSLAP = append(currentSLAP, edge)
+		slap, found := bg.findDisjointSLAPHelper(nextNode, currentSLAP, currentLevel-1, matching, guideLayers, used)
+		if found {
+			return slap, true
+		}
+		currentSLAP = currentSLAP[:len(currentSLAP)-1]
+	}
+
+	used[currentNode] = false
+	return nil, false
+}
+
+func (bg *BipartiteGraph) createSLAPGuideLayers(matching EdgeSet) (guideLayers []NodeOrderedSet) {
+	used := make(map[Node]bool)
+	currentLayer := NodeOrderedSet{}
+
+	for _, node := range bg.Left {
+		if matching.Free(node) {
+			used[node] = true
+			currentLayer = append(currentLayer, node)
+		}
+	}
+
+	if len(currentLayer) == 0 {
+		return []NodeOrderedSet{}
+	} else {
+		guideLayers = append(guideLayers, currentLayer)
+	}
+
+	done := false
+
+	for !done {
+		lastLayer := currentLayer
+		currentLayer = NodeOrderedSet{}
+
+		if util.Odd(len(guideLayers)) {
+			for _, leftNode := range lastLayer {
+				for _, rightNode := range bg.Right {
+					if used[rightNode] {
+						continue
+					}
+
+					edge, found := bg.Edges.FindByNodes(leftNode, rightNode)
+					if !found || matching.Contains(edge) {
+						continue
+					}
+
+					currentLayer = append(currentLayer, rightNode)
+					used[rightNode] = true
+
+					if matching.Free(rightNode) {
+						done = true
+					}
+				}
+			}
+		} else {
+			for _, rightNode := range lastLayer {
+				for _, leftNode := range bg.Left {
+					if used[leftNode] {
+						continue
+					}
+
+					edge, found := bg.Edges.FindByNodes(leftNode, rightNode)
+					if !found || !matching.Contains(edge) {
+						continue
+					}
+
+					currentLayer = append(currentLayer, leftNode)
+					used[leftNode] = true
+				}
+			}
+
+		}
+
+		if len(currentLayer) == 0 {
+			return []NodeOrderedSet{}
+		} else {
+			guideLayers = append(guideLayers, currentLayer)
+		}
+	}
+
+	return
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/support/goraph/edge/edge.go b/vendor/github.com/onsi/gomega/matchers/support/goraph/edge/edge.go
new file mode 100644
index 0000000..4fd15cc
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/support/goraph/edge/edge.go
@@ -0,0 +1,61 @@
+package edge
+
+import . "github.com/onsi/gomega/matchers/support/goraph/node"
+
+type Edge struct {
+	Node1 Node
+	Node2 Node
+}
+
+type EdgeSet []Edge
+
+func (ec EdgeSet) Free(node Node) bool {
+	for _, e := range ec {
+		if e.Node1 == node || e.Node2 == node {
+			return false
+		}
+	}
+
+	return true
+}
+
+func (ec EdgeSet) Contains(edge Edge) bool {
+	for _, e := range ec {
+		if e == edge {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (ec EdgeSet) FindByNodes(node1, node2 Node) (Edge, bool) {
+	for _, e := range ec {
+		if (e.Node1 == node1 && e.Node2 == node2) || (e.Node1 == node2 && e.Node2 == node1) {
+			return e, true
+		}
+	}
+
+	return Edge{}, false
+}
+
+func (ec EdgeSet) SymmetricDifference(ec2 EdgeSet) EdgeSet {
+	edgesToInclude := make(map[Edge]bool)
+
+	for _, e := range ec {
+		edgesToInclude[e] = true
+	}
+
+	for _, e := range ec2 {
+		edgesToInclude[e] = !edgesToInclude[e]
+	}
+
+	result := EdgeSet{}
+	for e, include := range edgesToInclude {
+		if include {
+			result = append(result, e)
+		}
+	}
+
+	return result
+}
diff --git a/vendor/github.com/onsi/gomega/matchers/support/goraph/node/node.go b/vendor/github.com/onsi/gomega/matchers/support/goraph/node/node.go
new file mode 100644
index 0000000..800c2ea
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/support/goraph/node/node.go
@@ -0,0 +1,7 @@
+package node
+
+type Node struct {
+	Id int
+}
+
+type NodeOrderedSet []Node
diff --git a/vendor/github.com/onsi/gomega/matchers/support/goraph/util/util.go b/vendor/github.com/onsi/gomega/matchers/support/goraph/util/util.go
new file mode 100644
index 0000000..a24cd27
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/support/goraph/util/util.go
@@ -0,0 +1,7 @@
+package util
+
+import "math"
+
+func Odd(n int) bool {
+    return math.Mod(float64(n), 2.0) == 1.0
+} 
diff --git a/vendor/github.com/onsi/gomega/matchers/type_support.go b/vendor/github.com/onsi/gomega/matchers/type_support.go
new file mode 100644
index 0000000..ef9b448
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/type_support.go
@@ -0,0 +1,165 @@
+/*
+Gomega matchers
+
+This package implements the Gomega matchers and does not typically need to be imported.
+See the docs for Gomega for documentation on the matchers
+
+http://onsi.github.io/gomega/
+*/
+package matchers
+
+import (
+	"fmt"
+	"reflect"
+)
+
+type omegaMatcher interface {
+	Match(actual interface{}) (success bool, err error)
+	FailureMessage(actual interface{}) (message string)
+	NegatedFailureMessage(actual interface{}) (message string)
+}
+
+func isBool(a interface{}) bool {
+	return reflect.TypeOf(a).Kind() == reflect.Bool
+}
+
+func isNumber(a interface{}) bool {
+	if a == nil {
+		return false
+	}
+	kind := reflect.TypeOf(a).Kind()
+	return reflect.Int <= kind && kind <= reflect.Float64
+}
+
+func isInteger(a interface{}) bool {
+	kind := reflect.TypeOf(a).Kind()
+	return reflect.Int <= kind && kind <= reflect.Int64
+}
+
+func isUnsignedInteger(a interface{}) bool {
+	kind := reflect.TypeOf(a).Kind()
+	return reflect.Uint <= kind && kind <= reflect.Uint64
+}
+
+func isFloat(a interface{}) bool {
+	kind := reflect.TypeOf(a).Kind()
+	return reflect.Float32 <= kind && kind <= reflect.Float64
+}
+
+func toInteger(a interface{}) int64 {
+	if isInteger(a) {
+		return reflect.ValueOf(a).Int()
+	} else if isUnsignedInteger(a) {
+		return int64(reflect.ValueOf(a).Uint())
+	} else if isFloat(a) {
+		return int64(reflect.ValueOf(a).Float())
+	} else {
+		panic(fmt.Sprintf("Expected a number!  Got <%T> %#v", a, a))
+	}
+}
+
+func toUnsignedInteger(a interface{}) uint64 {
+	if isInteger(a) {
+		return uint64(reflect.ValueOf(a).Int())
+	} else if isUnsignedInteger(a) {
+		return reflect.ValueOf(a).Uint()
+	} else if isFloat(a) {
+		return uint64(reflect.ValueOf(a).Float())
+	} else {
+		panic(fmt.Sprintf("Expected a number!  Got <%T> %#v", a, a))
+	}
+}
+
+func toFloat(a interface{}) float64 {
+	if isInteger(a) {
+		return float64(reflect.ValueOf(a).Int())
+	} else if isUnsignedInteger(a) {
+		return float64(reflect.ValueOf(a).Uint())
+	} else if isFloat(a) {
+		return reflect.ValueOf(a).Float()
+	} else {
+		panic(fmt.Sprintf("Expected a number!  Got <%T> %#v", a, a))
+	}
+}
+
+func isError(a interface{}) bool {
+	_, ok := a.(error)
+	return ok
+}
+
+func isChan(a interface{}) bool {
+	if isNil(a) {
+		return false
+	}
+	return reflect.TypeOf(a).Kind() == reflect.Chan
+}
+
+func isMap(a interface{}) bool {
+	if a == nil {
+		return false
+	}
+	return reflect.TypeOf(a).Kind() == reflect.Map
+}
+
+func isArrayOrSlice(a interface{}) bool {
+	if a == nil {
+		return false
+	}
+	switch reflect.TypeOf(a).Kind() {
+	case reflect.Array, reflect.Slice:
+		return true
+	default:
+		return false
+	}
+}
+
+func isString(a interface{}) bool {
+	if a == nil {
+		return false
+	}
+	return reflect.TypeOf(a).Kind() == reflect.String
+}
+
+func toString(a interface{}) (string, bool) {
+	aString, isString := a.(string)
+	if isString {
+		return aString, true
+	}
+
+	aBytes, isBytes := a.([]byte)
+	if isBytes {
+		return string(aBytes), true
+	}
+
+	aStringer, isStringer := a.(fmt.Stringer)
+	if isStringer {
+		return aStringer.String(), true
+	}
+
+	return "", false
+}
+
+func lengthOf(a interface{}) (int, bool) {
+	if a == nil {
+		return 0, false
+	}
+	switch reflect.TypeOf(a).Kind() {
+	case reflect.Map, reflect.Array, reflect.String, reflect.Chan, reflect.Slice:
+		return reflect.ValueOf(a).Len(), true
+	default:
+		return 0, false
+	}
+}
+
+func isNil(a interface{}) bool {
+	if a == nil {
+		return true
+	}
+
+	switch reflect.TypeOf(a).Kind() {
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
+		return reflect.ValueOf(a).IsNil()
+	}
+
+	return false
+}
diff --git a/vendor/github.com/onsi/gomega/types/types.go b/vendor/github.com/onsi/gomega/types/types.go
new file mode 100644
index 0000000..1c632ad
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/types/types.go
@@ -0,0 +1,17 @@
+package types
+
+type GomegaFailHandler func(message string, callerSkip ...int)
+
+//A simple *testing.T interface wrapper
+type GomegaTestingT interface {
+	Errorf(format string, args ...interface{})
+}
+
+//All Gomega matchers must implement the GomegaMatcher interface
+//
+//For details on writing custom matchers, check out: http://onsi.github.io/gomega/#adding_your_own_matchers
+type GomegaMatcher interface {
+	Match(actual interface{}) (success bool, err error)
+	FailureMessage(actual interface{}) (message string)
+	NegatedFailureMessage(actual interface{}) (message string)
+}
diff --git a/vendor/github.com/spf13/pflag/.travis.yml b/vendor/github.com/spf13/pflag/.travis.yml
new file mode 100644
index 0000000..c40fb69
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/.travis.yml
@@ -0,0 +1,17 @@
+sudo: false
+
+language: go
+
+go:
+        - 1.3
+        - 1.4
+        - tip
+
+install:
+        - go get github.com/golang/lint/golint
+        - export PATH=$GOPATH/bin:$PATH
+        - go install ./...
+
+script:
+        - verify/all.sh
+        - go test ./...
diff --git a/vendor/github.com/spf13/pflag/LICENSE b/vendor/github.com/spf13/pflag/LICENSE
new file mode 100644
index 0000000..63ed1cf
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/LICENSE
@@ -0,0 +1,28 @@
+Copyright (c) 2012 Alex Ogier. All rights reserved.
+Copyright (c) 2012 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/spf13/pflag/README.md b/vendor/github.com/spf13/pflag/README.md
new file mode 100644
index 0000000..e74dd50
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/README.md
@@ -0,0 +1,256 @@
+[![Build Status](https://travis-ci.org/spf13/pflag.svg?branch=master)](https://travis-ci.org/spf13/pflag)
+
+## Description
+
+pflag is a drop-in replacement for Go's flag package, implementing
+POSIX/GNU-style --flags.
+
+pflag is compatible with the [GNU extensions to the POSIX recommendations
+for command-line options][1]. For a more precise description, see the
+"Command-line flag syntax" section below.
+
+[1]: http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
+
+pflag is available under the same style of BSD license as the Go language,
+which can be found in the LICENSE file.
+
+## Installation
+
+pflag is available using the standard `go get` command.
+
+Install by running:
+
+    go get github.com/spf13/pflag
+
+Run tests by running:
+
+    go test github.com/spf13/pflag
+
+## Usage
+
+pflag is a drop-in replacement of Go's native flag package. If you import
+pflag under the name "flag" then all code should continue to function
+with no changes.
+
+``` go
+import flag "github.com/spf13/pflag"
+```
+
+There is one exception to this: if you directly instantiate the Flag struct
+there is one more field "Shorthand" that you will need to set.
+Most code never instantiates this struct directly, and instead uses
+functions such as String(), BoolVar(), and Var(), and is therefore
+unaffected.
+
+Define flags using flag.String(), Bool(), Int(), etc.
+
+This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
+
+``` go
+var ip *int = flag.Int("flagname", 1234, "help message for flagname")
+```
+
+If you like, you can bind the flag to a variable using the Var() functions.
+
+``` go
+var flagvar int
+func init() {
+    flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
+}
+```
+
+Or you can create custom flags that satisfy the Value interface (with
+pointer receivers) and couple them to flag parsing by
+
+``` go
+flag.Var(&flagVal, "name", "help message for flagname")
+```
+
+For such flags, the default value is just the initial value of the variable.
+
+After all flags are defined, call
+
+``` go
+flag.Parse()
+```
+
+to parse the command line into the defined flags.
+
+Flags may then be used directly. If you're using the flags themselves,
+they are all pointers; if you bind to variables, they're values.
+
+``` go
+fmt.Println("ip has value ", *ip)
+fmt.Println("flagvar has value ", flagvar)
+```
+
+There are helpers function to get values later if you have the FlagSet but
+it was difficult to keep up with all of the the flag pointers in your code.
+If you have a pflag.FlagSet with a flag called 'flagname' of type int you
+can use GetInt() to get the int value. But notice that 'flagname' must exist
+and it must be an int. GetString("flagname") will fail.
+
+``` go
+i, err := flagset.GetInt("flagname")
+```
+
+After parsing, the arguments after the flag are available as the
+slice flag.Args() or individually as flag.Arg(i).
+The arguments are indexed from 0 through flag.NArg()-1.
+
+The pflag package also defines some new functions that are not in flag,
+that give one-letter shorthands for flags. You can use these by appending
+'P' to the name of any function that defines a flag.
+
+``` go
+var ip = flag.IntP("flagname", "f", 1234, "help message")
+var flagvar bool
+func init() {
+    flag.BoolVarP("boolname", "b", true, "help message")
+}
+flag.VarP(&flagVar, "varname", "v", 1234, "help message")
+```
+
+Shorthand letters can be used with single dashes on the command line.
+Boolean shorthand flags can be combined with other shorthand flags.
+
+The default set of command-line flags is controlled by
+top-level functions.  The FlagSet type allows one to define
+independent sets of flags, such as to implement subcommands
+in a command-line interface. The methods of FlagSet are
+analogous to the top-level functions for the command-line
+flag set.
+
+## Setting no option default values for flags
+
+After you create a flag it is possible to set the pflag.NoOptDefVal for
+the given flag. Doing this changes the meaning of the flag slightly. If
+a flag has a NoOptDefVal and the flag is set on the command line without
+an option the flag will be set to the NoOptDefVal. For example given:
+
+``` go
+var ip = flag.IntP("flagname", "f", 1234, "help message")
+flag.Lookup("flagname").NoOptDefVal = "4321"
+```
+
+Would result in something like
+
+| Parsed Arguments | Resulting Value |
+| -------------    | -------------   |
+| --flagname=1357  | ip=1357         |
+| --flagname       | ip=4321         |
+| [nothing]        | ip=1234         |
+
+## Command line flag syntax
+
+```
+--flag    // boolean flags, or flags with no option default values
+--flag x  // only on flags without a default value
+--flag=x
+```
+
+Unlike the flag package, a single dash before an option means something
+different than a double dash. Single dashes signify a series of shorthand
+letters for flags. All but the last shorthand letter must be boolean flags
+or a flag with a default value
+
+```
+// boolean or flags where the 'no option default value' is set
+-f
+-f=true
+-abc
+but
+-b true is INVALID
+
+// non-boolean and flags without a 'no option default value'
+-n 1234
+-n=1234
+-n1234
+
+// mixed
+-abcs "hello"
+-absd="hello"
+-abcs1234
+```
+
+Flag parsing stops after the terminator "--". Unlike the flag package,
+flags can be interspersed with arguments anywhere on the command line
+before this terminator.
+
+Integer flags accept 1234, 0664, 0x1234 and may be negative.
+Boolean flags (in their long form) accept 1, 0, t, f, true, false,
+TRUE, FALSE, True, False.
+Duration flags accept any input valid for time.ParseDuration.
+
+## Mutating or "Normalizing" Flag names
+
+It is possible to set a custom flag name 'normalization function.' It allows flag names to be mutated both when created in the code and when used on the command line to some 'normalized' form. The 'normalized' form is used for comparison. Two examples of using the custom normalization func follow.
+
+**Example #1**: You want -, _, and . in flags to compare the same. aka --my-flag == --my_flag == --my.flag
+
+``` go
+func wordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
+	from := []string{"-", "_"}
+	to := "."
+	for _, sep := range from {
+		name = strings.Replace(name, sep, to, -1)
+	}
+	return pflag.NormalizedName(name)
+}
+
+myFlagSet.SetNormalizeFunc(wordSepNormalizeFunc)
+```
+
+**Example #2**: You want to alias two flags. aka --old-flag-name == --new-flag-name
+
+``` go
+func aliasNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
+	switch name {
+	case "old-flag-name":
+		name = "new-flag-name"
+		break
+	}
+	return pflag.NormalizedName(name)
+}
+
+myFlagSet.SetNormalizeFunc(aliasNormalizeFunc)
+```
+
+## Deprecating a flag or its shorthand
+It is possible to deprecate a flag, or just its shorthand. Deprecating a flag/shorthand hides it from help text and prints a usage message when the deprecated flag/shorthand is used.
+
+**Example #1**: You want to deprecate a flag named "badflag" as well as inform the users what flag they should use instead.
+```go
+// deprecate a flag by specifying its name and a usage message
+flags.MarkDeprecated("badflag", "please use --good-flag instead")
+```
+This hides "badflag" from help text, and prints `Flag --badflag has been deprecated, please use --good-flag instead` when "badflag" is used.
+
+**Example #2**: You want to keep a flag name "noshorthandflag" but deprecate its shortname "n".
+```go
+// deprecate a flag shorthand by specifying its flag name and a usage message
+flags.MarkShorthandDeprecated("noshorthandflag", "please use --noshorthandflag only")
+```
+This hides the shortname "n" from help text, and prints `Flag shorthand -n has been deprecated, please use --noshorthandflag only` when the shorthand "n" is used.
+
+Note that usage message is essential here, and it should not be empty.
+
+## Hidden flags
+It is possible to mark a flag as hidden, meaning it will still function as normal, however will not show up in usage/help text.
+
+**Example**: You have a flag named "secretFlag" that you need for internal use only and don't want it showing up in help text, or for its usage text to be available.
+```go
+// hide a flag by specifying its name
+flags.MarkHidden("secretFlag")
+```
+
+## More info
+
+You can see the full reference documentation of the pflag package
+[at godoc.org][3], or through go's standard documentation system by
+running `godoc -http=:6060` and browsing to
+[http://localhost:6060/pkg/github.com/ogier/pflag][2] after
+installation.
+
+[2]: http://localhost:6060/pkg/github.com/ogier/pflag
+[3]: http://godoc.org/github.com/ogier/pflag
diff --git a/vendor/github.com/spf13/pflag/bool.go b/vendor/github.com/spf13/pflag/bool.go
new file mode 100644
index 0000000..d272e40
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/bool.go
@@ -0,0 +1,97 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// optional interface to indicate boolean flags that can be
+// supplied without "=value" text
+type boolFlag interface {
+	Value
+	IsBoolFlag() bool
+}
+
+// -- bool Value
+type boolValue bool
+
+func newBoolValue(val bool, p *bool) *boolValue {
+	*p = val
+	return (*boolValue)(p)
+}
+
+func (b *boolValue) Set(s string) error {
+	v, err := strconv.ParseBool(s)
+	*b = boolValue(v)
+	return err
+}
+
+func (b *boolValue) Type() string {
+	return "bool"
+}
+
+func (b *boolValue) String() string { return fmt.Sprintf("%v", *b) }
+
+func (b *boolValue) IsBoolFlag() bool { return true }
+
+func boolConv(sval string) (interface{}, error) {
+	return strconv.ParseBool(sval)
+}
+
+// GetBool return the bool value of a flag with the given name
+func (f *FlagSet) GetBool(name string) (bool, error) {
+	val, err := f.getFlagType(name, "bool", boolConv)
+	if err != nil {
+		return false, err
+	}
+	return val.(bool), nil
+}
+
+// BoolVar defines a bool flag with specified name, default value, and usage string.
+// The argument p points to a bool variable in which to store the value of the flag.
+func (f *FlagSet) BoolVar(p *bool, name string, value bool, usage string) {
+	f.BoolVarP(p, name, "", value, usage)
+}
+
+// BoolVarP is like BoolVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
+	flag := f.VarPF(newBoolValue(value, p), name, shorthand, usage)
+	flag.NoOptDefVal = "true"
+}
+
+// BoolVar defines a bool flag with specified name, default value, and usage string.
+// The argument p points to a bool variable in which to store the value of the flag.
+func BoolVar(p *bool, name string, value bool, usage string) {
+	BoolVarP(p, name, "", value, usage)
+}
+
+// BoolVarP is like BoolVar, but accepts a shorthand letter that can be used after a single dash.
+func BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
+	flag := CommandLine.VarPF(newBoolValue(value, p), name, shorthand, usage)
+	flag.NoOptDefVal = "true"
+}
+
+// Bool defines a bool flag with specified name, default value, and usage string.
+// The return value is the address of a bool variable that stores the value of the flag.
+func (f *FlagSet) Bool(name string, value bool, usage string) *bool {
+	return f.BoolP(name, "", value, usage)
+}
+
+// BoolP is like Bool, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BoolP(name, shorthand string, value bool, usage string) *bool {
+	p := new(bool)
+	f.BoolVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Bool defines a bool flag with specified name, default value, and usage string.
+// The return value is the address of a bool variable that stores the value of the flag.
+func Bool(name string, value bool, usage string) *bool {
+	return BoolP(name, "", value, usage)
+}
+
+// BoolP is like Bool, but accepts a shorthand letter that can be used after a single dash.
+func BoolP(name, shorthand string, value bool, usage string) *bool {
+	b := CommandLine.BoolP(name, shorthand, value, usage)
+	return b
+}
diff --git a/vendor/github.com/spf13/pflag/count.go b/vendor/github.com/spf13/pflag/count.go
new file mode 100644
index 0000000..7b1f142
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/count.go
@@ -0,0 +1,97 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- count Value
+type countValue int
+
+func newCountValue(val int, p *int) *countValue {
+	*p = val
+	return (*countValue)(p)
+}
+
+func (i *countValue) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 64)
+	// -1 means that no specific value was passed, so increment
+	if v == -1 {
+		*i = countValue(*i + 1)
+	} else {
+		*i = countValue(v)
+	}
+	return err
+}
+
+func (i *countValue) Type() string {
+	return "count"
+}
+
+func (i *countValue) String() string { return fmt.Sprintf("%v", *i) }
+
+func countConv(sval string) (interface{}, error) {
+	i, err := strconv.Atoi(sval)
+	if err != nil {
+		return nil, err
+	}
+	return i, nil
+}
+
+// GetCount return the int value of a flag with the given name
+func (f *FlagSet) GetCount(name string) (int, error) {
+	val, err := f.getFlagType(name, "count", countConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int), nil
+}
+
+// CountVar defines a count flag with specified name, default value, and usage string.
+// The argument p points to an int variable in which to store the value of the flag.
+// A count flag will add 1 to its value evey time it is found on the command line
+func (f *FlagSet) CountVar(p *int, name string, usage string) {
+	f.CountVarP(p, name, "", usage)
+}
+
+// CountVarP is like CountVar only take a shorthand for the flag name.
+func (f *FlagSet) CountVarP(p *int, name, shorthand string, usage string) {
+	flag := f.VarPF(newCountValue(0, p), name, shorthand, usage)
+	flag.NoOptDefVal = "-1"
+}
+
+// CountVar like CountVar only the flag is placed on the CommandLine instead of a given flag set
+func CountVar(p *int, name string, usage string) {
+	CommandLine.CountVar(p, name, usage)
+}
+
+// CountVarP is like CountVar only take a shorthand for the flag name.
+func CountVarP(p *int, name, shorthand string, usage string) {
+	CommandLine.CountVarP(p, name, shorthand, usage)
+}
+
+// Count defines a count flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+// A count flag will add 1 to its value evey time it is found on the command line
+func (f *FlagSet) Count(name string, usage string) *int {
+	p := new(int)
+	f.CountVarP(p, name, "", usage)
+	return p
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func (f *FlagSet) CountP(name, shorthand string, usage string) *int {
+	p := new(int)
+	f.CountVarP(p, name, shorthand, usage)
+	return p
+}
+
+// Count like Count only the flag is placed on the CommandLine isntead of a given flag set
+func Count(name string, usage string) *int {
+	return CommandLine.CountP(name, "", usage)
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func CountP(name, shorthand string, usage string) *int {
+	return CommandLine.CountP(name, shorthand, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/duration.go b/vendor/github.com/spf13/pflag/duration.go
new file mode 100644
index 0000000..e9debef
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/duration.go
@@ -0,0 +1,86 @@
+package pflag
+
+import (
+	"time"
+)
+
+// -- time.Duration Value
+type durationValue time.Duration
+
+func newDurationValue(val time.Duration, p *time.Duration) *durationValue {
+	*p = val
+	return (*durationValue)(p)
+}
+
+func (d *durationValue) Set(s string) error {
+	v, err := time.ParseDuration(s)
+	*d = durationValue(v)
+	return err
+}
+
+func (d *durationValue) Type() string {
+	return "duration"
+}
+
+func (d *durationValue) String() string { return (*time.Duration)(d).String() }
+
+func durationConv(sval string) (interface{}, error) {
+	return time.ParseDuration(sval)
+}
+
+// GetDuration return the duration value of a flag with the given name
+func (f *FlagSet) GetDuration(name string) (time.Duration, error) {
+	val, err := f.getFlagType(name, "duration", durationConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(time.Duration), nil
+}
+
+// DurationVar defines a time.Duration flag with specified name, default value, and usage string.
+// The argument p points to a time.Duration variable in which to store the value of the flag.
+func (f *FlagSet) DurationVar(p *time.Duration, name string, value time.Duration, usage string) {
+	f.VarP(newDurationValue(value, p), name, "", usage)
+}
+
+// DurationVarP is like DurationVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) DurationVarP(p *time.Duration, name, shorthand string, value time.Duration, usage string) {
+	f.VarP(newDurationValue(value, p), name, shorthand, usage)
+}
+
+// DurationVar defines a time.Duration flag with specified name, default value, and usage string.
+// The argument p points to a time.Duration variable in which to store the value of the flag.
+func DurationVar(p *time.Duration, name string, value time.Duration, usage string) {
+	CommandLine.VarP(newDurationValue(value, p), name, "", usage)
+}
+
+// DurationVarP is like DurationVar, but accepts a shorthand letter that can be used after a single dash.
+func DurationVarP(p *time.Duration, name, shorthand string, value time.Duration, usage string) {
+	CommandLine.VarP(newDurationValue(value, p), name, shorthand, usage)
+}
+
+// Duration defines a time.Duration flag with specified name, default value, and usage string.
+// The return value is the address of a time.Duration variable that stores the value of the flag.
+func (f *FlagSet) Duration(name string, value time.Duration, usage string) *time.Duration {
+	p := new(time.Duration)
+	f.DurationVarP(p, name, "", value, usage)
+	return p
+}
+
+// DurationP is like Duration, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) DurationP(name, shorthand string, value time.Duration, usage string) *time.Duration {
+	p := new(time.Duration)
+	f.DurationVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Duration defines a time.Duration flag with specified name, default value, and usage string.
+// The return value is the address of a time.Duration variable that stores the value of the flag.
+func Duration(name string, value time.Duration, usage string) *time.Duration {
+	return CommandLine.DurationP(name, "", value, usage)
+}
+
+// DurationP is like Duration, but accepts a shorthand letter that can be used after a single dash.
+func DurationP(name, shorthand string, value time.Duration, usage string) *time.Duration {
+	return CommandLine.DurationP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/flag.go b/vendor/github.com/spf13/pflag/flag.go
new file mode 100644
index 0000000..fd91440
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/flag.go
@@ -0,0 +1,836 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package pflag is a drop-in replacement for Go's flag package, implementing
+POSIX/GNU-style --flags.
+
+pflag is compatible with the GNU extensions to the POSIX recommendations
+for command-line options. See
+http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
+
+Usage:
+
+pflag is a drop-in replacement of Go's native flag package. If you import
+pflag under the name "flag" then all code should continue to function
+with no changes.
+
+	import flag "github.com/ogier/pflag"
+
+	There is one exception to this: if you directly instantiate the Flag struct
+there is one more field "Shorthand" that you will need to set.
+Most code never instantiates this struct directly, and instead uses
+functions such as String(), BoolVar(), and Var(), and is therefore
+unaffected.
+
+Define flags using flag.String(), Bool(), Int(), etc.
+
+This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
+	var ip = flag.Int("flagname", 1234, "help message for flagname")
+If you like, you can bind the flag to a variable using the Var() functions.
+	var flagvar int
+	func init() {
+		flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
+	}
+Or you can create custom flags that satisfy the Value interface (with
+pointer receivers) and couple them to flag parsing by
+	flag.Var(&flagVal, "name", "help message for flagname")
+For such flags, the default value is just the initial value of the variable.
+
+After all flags are defined, call
+	flag.Parse()
+to parse the command line into the defined flags.
+
+Flags may then be used directly. If you're using the flags themselves,
+they are all pointers; if you bind to variables, they're values.
+	fmt.Println("ip has value ", *ip)
+	fmt.Println("flagvar has value ", flagvar)
+
+After parsing, the arguments after the flag are available as the
+slice flag.Args() or individually as flag.Arg(i).
+The arguments are indexed from 0 through flag.NArg()-1.
+
+The pflag package also defines some new functions that are not in flag,
+that give one-letter shorthands for flags. You can use these by appending
+'P' to the name of any function that defines a flag.
+	var ip = flag.IntP("flagname", "f", 1234, "help message")
+	var flagvar bool
+	func init() {
+		flag.BoolVarP("boolname", "b", true, "help message")
+	}
+	flag.VarP(&flagVar, "varname", "v", 1234, "help message")
+Shorthand letters can be used with single dashes on the command line.
+Boolean shorthand flags can be combined with other shorthand flags.
+
+Command line flag syntax:
+	--flag    // boolean flags only
+	--flag=x
+
+Unlike the flag package, a single dash before an option means something
+different than a double dash. Single dashes signify a series of shorthand
+letters for flags. All but the last shorthand letter must be boolean flags.
+	// boolean flags
+	-f
+	-abc
+	// non-boolean flags
+	-n 1234
+	-Ifile
+	// mixed
+	-abcs "hello"
+	-abcn1234
+
+Flag parsing stops after the terminator "--". Unlike the flag package,
+flags can be interspersed with arguments anywhere on the command line
+before this terminator.
+
+Integer flags accept 1234, 0664, 0x1234 and may be negative.
+Boolean flags (in their long form) accept 1, 0, t, f, true, false,
+TRUE, FALSE, True, False.
+Duration flags accept any input valid for time.ParseDuration.
+
+The default set of command-line flags is controlled by
+top-level functions.  The FlagSet type allows one to define
+independent sets of flags, such as to implement subcommands
+in a command-line interface. The methods of FlagSet are
+analogous to the top-level functions for the command-line
+flag set.
+*/
+package pflag
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"sort"
+	"strings"
+)
+
+// ErrHelp is the error returned if the flag -help is invoked but no such flag is defined.
+var ErrHelp = errors.New("pflag: help requested")
+
+// ErrorHandling defines how to handle flag parsing errors.
+type ErrorHandling int
+
+const (
+	// ContinueOnError will return an err from Parse() if an error is found
+	ContinueOnError ErrorHandling = iota
+	// ExitOnError will call os.Exit(2) if an error is found when parsing
+	ExitOnError
+	// PanicOnError will panic() if an error is found when parsing flags
+	PanicOnError
+)
+
+// NormalizedName is a flag name that has been normalized according to rules
+// for the FlagSet (e.g. making '-' and '_' equivalent).
+type NormalizedName string
+
+// A FlagSet represents a set of defined flags.
+type FlagSet struct {
+	// Usage is the function called when an error occurs while parsing flags.
+	// The field is a function (not a method) that may be changed to point to
+	// a custom error handler.
+	Usage func()
+
+	name              string
+	parsed            bool
+	actual            map[NormalizedName]*Flag
+	formal            map[NormalizedName]*Flag
+	shorthands        map[byte]*Flag
+	args              []string // arguments after flags
+	argsLenAtDash     int      // len(args) when a '--' was located when parsing, or -1 if no --
+	exitOnError       bool     // does the program exit if there's an error?
+	errorHandling     ErrorHandling
+	output            io.Writer // nil means stderr; use out() accessor
+	interspersed      bool      // allow interspersed option/non-option args
+	normalizeNameFunc func(f *FlagSet, name string) NormalizedName
+}
+
+// A Flag represents the state of a flag.
+type Flag struct {
+	Name                string              // name as it appears on command line
+	Shorthand           string              // one-letter abbreviated flag
+	Usage               string              // help message
+	Value               Value               // value as set
+	DefValue            string              // default value (as text); for usage message
+	Changed             bool                // If the user set the value (or if left to default)
+	NoOptDefVal         string              //default value (as text); if the flag is on the command line without any options
+	Deprecated          string              // If this flag is deprecated, this string is the new or now thing to use
+	Hidden              bool                // used by cobra.Command to allow flags to be hidden from help/usage text
+	ShorthandDeprecated string              // If the shorthand of this flag is deprecated, this string is the new or now thing to use
+	Annotations         map[string][]string // used by cobra.Command bash autocomple code
+}
+
+// Value is the interface to the dynamic value stored in a flag.
+// (The default value is represented as a string.)
+type Value interface {
+	String() string
+	Set(string) error
+	Type() string
+}
+
+// sortFlags returns the flags as a slice in lexicographical sorted order.
+func sortFlags(flags map[NormalizedName]*Flag) []*Flag {
+	list := make(sort.StringSlice, len(flags))
+	i := 0
+	for k := range flags {
+		list[i] = string(k)
+		i++
+	}
+	list.Sort()
+	result := make([]*Flag, len(list))
+	for i, name := range list {
+		result[i] = flags[NormalizedName(name)]
+	}
+	return result
+}
+
+// SetNormalizeFunc allows you to add a function which can translate flag names.
+// Flags added to the FlagSet will be translated and then when anything tries to
+// look up the flag that will also be translated. So it would be possible to create
+// a flag named "getURL" and have it translated to "geturl".  A user could then pass
+// "--getUrl" which may also be translated to "geturl" and everything will work.
+func (f *FlagSet) SetNormalizeFunc(n func(f *FlagSet, name string) NormalizedName) {
+	f.normalizeNameFunc = n
+	for k, v := range f.formal {
+		delete(f.formal, k)
+		nname := f.normalizeFlagName(string(k))
+		f.formal[nname] = v
+		v.Name = string(nname)
+	}
+}
+
+// GetNormalizeFunc returns the previously set NormalizeFunc of a function which
+// does no translation, if not set previously.
+func (f *FlagSet) GetNormalizeFunc() func(f *FlagSet, name string) NormalizedName {
+	if f.normalizeNameFunc != nil {
+		return f.normalizeNameFunc
+	}
+	return func(f *FlagSet, name string) NormalizedName { return NormalizedName(name) }
+}
+
+func (f *FlagSet) normalizeFlagName(name string) NormalizedName {
+	n := f.GetNormalizeFunc()
+	return n(f, name)
+}
+
+func (f *FlagSet) out() io.Writer {
+	if f.output == nil {
+		return os.Stderr
+	}
+	return f.output
+}
+
+// SetOutput sets the destination for usage and error messages.
+// If output is nil, os.Stderr is used.
+func (f *FlagSet) SetOutput(output io.Writer) {
+	f.output = output
+}
+
+// VisitAll visits the flags in lexicographical order, calling fn for each.
+// It visits all flags, even those not set.
+func (f *FlagSet) VisitAll(fn func(*Flag)) {
+	for _, flag := range sortFlags(f.formal) {
+		fn(flag)
+	}
+}
+
+// HasFlags returns a bool to indicate if the FlagSet has any flags definied.
+func (f *FlagSet) HasFlags() bool {
+	return len(f.formal) > 0
+}
+
+// VisitAll visits the command-line flags in lexicographical order, calling
+// fn for each.  It visits all flags, even those not set.
+func VisitAll(fn func(*Flag)) {
+	CommandLine.VisitAll(fn)
+}
+
+// Visit visits the flags in lexicographical order, calling fn for each.
+// It visits only those flags that have been set.
+func (f *FlagSet) Visit(fn func(*Flag)) {
+	for _, flag := range sortFlags(f.actual) {
+		fn(flag)
+	}
+}
+
+// Visit visits the command-line flags in lexicographical order, calling fn
+// for each.  It visits only those flags that have been set.
+func Visit(fn func(*Flag)) {
+	CommandLine.Visit(fn)
+}
+
+// Lookup returns the Flag structure of the named flag, returning nil if none exists.
+func (f *FlagSet) Lookup(name string) *Flag {
+	return f.lookup(f.normalizeFlagName(name))
+}
+
+// lookup returns the Flag structure of the named flag, returning nil if none exists.
+func (f *FlagSet) lookup(name NormalizedName) *Flag {
+	return f.formal[name]
+}
+
+// func to return a given type for a given flag name
+func (f *FlagSet) getFlagType(name string, ftype string, convFunc func(sval string) (interface{}, error)) (interface{}, error) {
+	flag := f.Lookup(name)
+	if flag == nil {
+		err := fmt.Errorf("flag accessed but not defined: %s", name)
+		return nil, err
+	}
+
+	if flag.Value.Type() != ftype {
+		err := fmt.Errorf("trying to get %s value of flag of type %s", ftype, flag.Value.Type())
+		return nil, err
+	}
+
+	sval := flag.Value.String()
+	result, err := convFunc(sval)
+	if err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+// ArgsLenAtDash will return the length of f.Args at the moment when a -- was
+// found during arg parsing. This allows your program to know which args were
+// before the -- and which came after.
+func (f *FlagSet) ArgsLenAtDash() int {
+	return f.argsLenAtDash
+}
+
+// MarkDeprecated indicated that a flag is deprecated in your program. It will
+// continue to function but will not show up in help or usage messages. Using
+// this flag will also print the given usageMessage.
+func (f *FlagSet) MarkDeprecated(name string, usageMessage string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	if len(usageMessage) == 0 {
+		return fmt.Errorf("deprecated message for flag %q must be set", name)
+	}
+	flag.Deprecated = usageMessage
+	return nil
+}
+
+// MarkShorthandDeprecated will mark the shorthand of a flag deprecated in your
+// program. It will continue to function but will not show up in help or usage
+// messages. Using this flag will also print the given usageMessage.
+func (f *FlagSet) MarkShorthandDeprecated(name string, usageMessage string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	if len(usageMessage) == 0 {
+		return fmt.Errorf("deprecated message for flag %q must be set", name)
+	}
+	flag.ShorthandDeprecated = usageMessage
+	return nil
+}
+
+// MarkHidden sets a flag to 'hidden' in your program. It will continue to
+// function but will not show up in help or usage messages.
+func (f *FlagSet) MarkHidden(name string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	flag.Hidden = true
+	return nil
+}
+
+// Lookup returns the Flag structure of the named command-line flag,
+// returning nil if none exists.
+func Lookup(name string) *Flag {
+	return CommandLine.Lookup(name)
+}
+
+// Set sets the value of the named flag.
+func (f *FlagSet) Set(name, value string) error {
+	normalName := f.normalizeFlagName(name)
+	flag, ok := f.formal[normalName]
+	if !ok {
+		return fmt.Errorf("no such flag -%v", name)
+	}
+	err := flag.Value.Set(value)
+	if err != nil {
+		return err
+	}
+	if f.actual == nil {
+		f.actual = make(map[NormalizedName]*Flag)
+	}
+	f.actual[normalName] = flag
+	flag.Changed = true
+	if len(flag.Deprecated) > 0 {
+		fmt.Fprintf(os.Stderr, "Flag --%s has been deprecated, %s\n", flag.Name, flag.Deprecated)
+	}
+	return nil
+}
+
+// SetAnnotation allows one to set arbitrary annotations on a flag in the FlagSet.
+// This is sometimes used by spf13/cobra programs which want to generate additional
+// bash completion information.
+func (f *FlagSet) SetAnnotation(name, key string, values []string) error {
+	normalName := f.normalizeFlagName(name)
+	flag, ok := f.formal[normalName]
+	if !ok {
+		return fmt.Errorf("no such flag -%v", name)
+	}
+	if flag.Annotations == nil {
+		flag.Annotations = map[string][]string{}
+	}
+	flag.Annotations[key] = values
+	return nil
+}
+
+// Changed returns true if the flag was explicitly set during Parse() and false
+// otherwise
+func (f *FlagSet) Changed(name string) bool {
+	flag := f.Lookup(name)
+	// If a flag doesn't exist, it wasn't changed....
+	if flag == nil {
+		return false
+	}
+	return flag.Changed
+}
+
+// Set sets the value of the named command-line flag.
+func Set(name, value string) error {
+	return CommandLine.Set(name, value)
+}
+
+// PrintDefaults prints, to standard error unless configured
+// otherwise, the default values of all defined flags in the set.
+func (f *FlagSet) PrintDefaults() {
+	usages := f.FlagUsages()
+	fmt.Fprintf(f.out(), "%s", usages)
+}
+
+// FlagUsages Returns a string containing the usage information for all flags in
+// the FlagSet
+func (f *FlagSet) FlagUsages() string {
+	x := new(bytes.Buffer)
+
+	f.VisitAll(func(flag *Flag) {
+		if len(flag.Deprecated) > 0 || flag.Hidden {
+			return
+		}
+		format := ""
+		if len(flag.Shorthand) > 0 && len(flag.ShorthandDeprecated) == 0 {
+			format = "  -%s, --%s"
+		} else {
+			format = "   %s   --%s"
+		}
+		if len(flag.NoOptDefVal) > 0 {
+			format = format + "["
+		}
+		if flag.Value.Type() == "string" {
+			// put quotes on the value
+			format = format + "=%q"
+		} else {
+			format = format + "=%s"
+		}
+		if len(flag.NoOptDefVal) > 0 {
+			format = format + "]"
+		}
+		format = format + ": %s\n"
+		shorthand := flag.Shorthand
+		if len(flag.ShorthandDeprecated) > 0 {
+			shorthand = ""
+		}
+		fmt.Fprintf(x, format, shorthand, flag.Name, flag.DefValue, flag.Usage)
+	})
+
+	return x.String()
+}
+
+// PrintDefaults prints to standard error the default values of all defined command-line flags.
+func PrintDefaults() {
+	CommandLine.PrintDefaults()
+}
+
+// defaultUsage is the default function to print a usage message.
+func defaultUsage(f *FlagSet) {
+	fmt.Fprintf(f.out(), "Usage of %s:\n", f.name)
+	f.PrintDefaults()
+}
+
+// NOTE: Usage is not just defaultUsage(CommandLine)
+// because it serves (via godoc flag Usage) as the example
+// for how to write your own usage function.
+
+// Usage prints to standard error a usage message documenting all defined command-line flags.
+// The function is a variable that may be changed to point to a custom function.
+var Usage = func() {
+	fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
+	PrintDefaults()
+}
+
+// NFlag returns the number of flags that have been set.
+func (f *FlagSet) NFlag() int { return len(f.actual) }
+
+// NFlag returns the number of command-line flags that have been set.
+func NFlag() int { return len(CommandLine.actual) }
+
+// Arg returns the i'th argument.  Arg(0) is the first remaining argument
+// after flags have been processed.
+func (f *FlagSet) Arg(i int) string {
+	if i < 0 || i >= len(f.args) {
+		return ""
+	}
+	return f.args[i]
+}
+
+// Arg returns the i'th command-line argument.  Arg(0) is the first remaining argument
+// after flags have been processed.
+func Arg(i int) string {
+	return CommandLine.Arg(i)
+}
+
+// NArg is the number of arguments remaining after flags have been processed.
+func (f *FlagSet) NArg() int { return len(f.args) }
+
+// NArg is the number of arguments remaining after flags have been processed.
+func NArg() int { return len(CommandLine.args) }
+
+// Args returns the non-flag arguments.
+func (f *FlagSet) Args() []string { return f.args }
+
+// Args returns the non-flag command-line arguments.
+func Args() []string { return CommandLine.args }
+
+// Var defines a flag with the specified name and usage string. The type and
+// value of the flag are represented by the first argument, of type Value, which
+// typically holds a user-defined implementation of Value. For instance, the
+// caller could create a flag that turns a comma-separated string into a slice
+// of strings by giving the slice the methods of Value; in particular, Set would
+// decompose the comma-separated string into the slice.
+func (f *FlagSet) Var(value Value, name string, usage string) {
+	f.VarP(value, name, "", usage)
+}
+
+// VarPF is like VarP, but returns the flag created
+func (f *FlagSet) VarPF(value Value, name, shorthand, usage string) *Flag {
+	// Remember the default value as a string; it won't change.
+	flag := &Flag{
+		Name:      name,
+		Shorthand: shorthand,
+		Usage:     usage,
+		Value:     value,
+		DefValue:  value.String(),
+	}
+	f.AddFlag(flag)
+	return flag
+}
+
+// VarP is like Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) VarP(value Value, name, shorthand, usage string) {
+	_ = f.VarPF(value, name, shorthand, usage)
+}
+
+// AddFlag will add the flag to the FlagSet
+func (f *FlagSet) AddFlag(flag *Flag) {
+	// Call normalizeFlagName function only once
+	normalizedFlagName := f.normalizeFlagName(flag.Name)
+
+	_, alreadythere := f.formal[normalizedFlagName]
+	if alreadythere {
+		msg := fmt.Sprintf("%s flag redefined: %s", f.name, flag.Name)
+		fmt.Fprintln(f.out(), msg)
+		panic(msg) // Happens only if flags are declared with identical names
+	}
+	if f.formal == nil {
+		f.formal = make(map[NormalizedName]*Flag)
+	}
+
+	flag.Name = string(normalizedFlagName)
+	f.formal[normalizedFlagName] = flag
+
+	if len(flag.Shorthand) == 0 {
+		return
+	}
+	if len(flag.Shorthand) > 1 {
+		fmt.Fprintf(f.out(), "%s shorthand more than ASCII character: %s\n", f.name, flag.Shorthand)
+		panic("shorthand is more than one character")
+	}
+	if f.shorthands == nil {
+		f.shorthands = make(map[byte]*Flag)
+	}
+	c := flag.Shorthand[0]
+	old, alreadythere := f.shorthands[c]
+	if alreadythere {
+		fmt.Fprintf(f.out(), "%s shorthand reused: %q for %s already used for %s\n", f.name, c, flag.Name, old.Name)
+		panic("shorthand redefinition")
+	}
+	f.shorthands[c] = flag
+}
+
+// AddFlagSet adds one FlagSet to another. If a flag is already present in f
+// the flag from newSet will be ignored
+func (f *FlagSet) AddFlagSet(newSet *FlagSet) {
+	if newSet == nil {
+		return
+	}
+	newSet.VisitAll(func(flag *Flag) {
+		if f.Lookup(flag.Name) == nil {
+			f.AddFlag(flag)
+		}
+	})
+}
+
+// Var defines a flag with the specified name and usage string. The type and
+// value of the flag are represented by the first argument, of type Value, which
+// typically holds a user-defined implementation of Value. For instance, the
+// caller could create a flag that turns a comma-separated string into a slice
+// of strings by giving the slice the methods of Value; in particular, Set would
+// decompose the comma-separated string into the slice.
+func Var(value Value, name string, usage string) {
+	CommandLine.VarP(value, name, "", usage)
+}
+
+// VarP is like Var, but accepts a shorthand letter that can be used after a single dash.
+func VarP(value Value, name, shorthand, usage string) {
+	CommandLine.VarP(value, name, shorthand, usage)
+}
+
+// failf prints to standard error a formatted error and usage message and
+// returns the error.
+func (f *FlagSet) failf(format string, a ...interface{}) error {
+	err := fmt.Errorf(format, a...)
+	fmt.Fprintln(f.out(), err)
+	f.usage()
+	return err
+}
+
+// usage calls the Usage method for the flag set, or the usage function if
+// the flag set is CommandLine.
+func (f *FlagSet) usage() {
+	if f == CommandLine {
+		Usage()
+	} else if f.Usage == nil {
+		defaultUsage(f)
+	} else {
+		f.Usage()
+	}
+}
+
+func (f *FlagSet) setFlag(flag *Flag, value string, origArg string) error {
+	if err := flag.Value.Set(value); err != nil {
+		return f.failf("invalid argument %q for %s: %v", value, origArg, err)
+	}
+	// mark as visited for Visit()
+	if f.actual == nil {
+		f.actual = make(map[NormalizedName]*Flag)
+	}
+	f.actual[f.normalizeFlagName(flag.Name)] = flag
+	flag.Changed = true
+	if len(flag.Deprecated) > 0 {
+		fmt.Fprintf(os.Stderr, "Flag --%s has been deprecated, %s\n", flag.Name, flag.Deprecated)
+	}
+	if len(flag.ShorthandDeprecated) > 0 && containsShorthand(origArg, flag.Shorthand) {
+		fmt.Fprintf(os.Stderr, "Flag shorthand -%s has been deprecated, %s\n", flag.Shorthand, flag.ShorthandDeprecated)
+	}
+	return nil
+}
+
+func containsShorthand(arg, shorthand string) bool {
+	// filter out flags --<flag_name>
+	if strings.HasPrefix(arg, "-") {
+		return false
+	}
+	arg = strings.SplitN(arg, "=", 2)[0]
+	return strings.Contains(arg, shorthand)
+}
+
+func (f *FlagSet) parseLongArg(s string, args []string) (a []string, err error) {
+	a = args
+	name := s[2:]
+	if len(name) == 0 || name[0] == '-' || name[0] == '=' {
+		err = f.failf("bad flag syntax: %s", s)
+		return
+	}
+	split := strings.SplitN(name, "=", 2)
+	name = split[0]
+	flag, alreadythere := f.formal[f.normalizeFlagName(name)]
+	if !alreadythere {
+		if name == "help" { // special case for nice help message.
+			f.usage()
+			return a, ErrHelp
+		}
+		err = f.failf("unknown flag: --%s", name)
+		return
+	}
+	var value string
+	if len(split) == 2 {
+		// '--flag=arg'
+		value = split[1]
+	} else if len(flag.NoOptDefVal) > 0 {
+		// '--flag' (arg was optional)
+		value = flag.NoOptDefVal
+	} else if len(a) > 0 {
+		// '--flag arg'
+		value = a[0]
+		a = a[1:]
+	} else {
+		// '--flag' (arg was required)
+		err = f.failf("flag needs an argument: %s", s)
+		return
+	}
+	err = f.setFlag(flag, value, s)
+	return
+}
+
+func (f *FlagSet) parseSingleShortArg(shorthands string, args []string) (outShorts string, outArgs []string, err error) {
+	outArgs = args
+	outShorts = shorthands[1:]
+	c := shorthands[0]
+
+	flag, alreadythere := f.shorthands[c]
+	if !alreadythere {
+		if c == 'h' { // special case for nice help message.
+			f.usage()
+			err = ErrHelp
+			return
+		}
+		//TODO continue on error
+		err = f.failf("unknown shorthand flag: %q in -%s", c, shorthands)
+		return
+	}
+	var value string
+	if len(shorthands) > 2 && shorthands[1] == '=' {
+		value = shorthands[2:]
+		outShorts = ""
+	} else if len(flag.NoOptDefVal) > 0 {
+		value = flag.NoOptDefVal
+	} else if len(shorthands) > 1 {
+		value = shorthands[1:]
+		outShorts = ""
+	} else if len(args) > 0 {
+		value = args[0]
+		outArgs = args[1:]
+	} else {
+		err = f.failf("flag needs an argument: %q in -%s", c, shorthands)
+		return
+	}
+	err = f.setFlag(flag, value, shorthands)
+	return
+}
+
+func (f *FlagSet) parseShortArg(s string, args []string) (a []string, err error) {
+	a = args
+	shorthands := s[1:]
+
+	for len(shorthands) > 0 {
+		shorthands, a, err = f.parseSingleShortArg(shorthands, args)
+		if err != nil {
+			return
+		}
+	}
+
+	return
+}
+
+func (f *FlagSet) parseArgs(args []string) (err error) {
+	for len(args) > 0 {
+		s := args[0]
+		args = args[1:]
+		if len(s) == 0 || s[0] != '-' || len(s) == 1 {
+			if !f.interspersed {
+				f.args = append(f.args, s)
+				f.args = append(f.args, args...)
+				return nil
+			}
+			f.args = append(f.args, s)
+			continue
+		}
+
+		if s[1] == '-' {
+			if len(s) == 2 { // "--" terminates the flags
+				f.argsLenAtDash = len(f.args)
+				f.args = append(f.args, args...)
+				break
+			}
+			args, err = f.parseLongArg(s, args)
+		} else {
+			args, err = f.parseShortArg(s, args)
+		}
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+
+// Parse parses flag definitions from the argument list, which should not
+// include the command name.  Must be called after all flags in the FlagSet
+// are defined and before flags are accessed by the program.
+// The return value will be ErrHelp if -help was set but not defined.
+func (f *FlagSet) Parse(arguments []string) error {
+	f.parsed = true
+	f.args = make([]string, 0, len(arguments))
+	err := f.parseArgs(arguments)
+	if err != nil {
+		switch f.errorHandling {
+		case ContinueOnError:
+			return err
+		case ExitOnError:
+			os.Exit(2)
+		case PanicOnError:
+			panic(err)
+		}
+	}
+	return nil
+}
+
+// Parsed reports whether f.Parse has been called.
+func (f *FlagSet) Parsed() bool {
+	return f.parsed
+}
+
+// Parse parses the command-line flags from os.Args[1:].  Must be called
+// after all flags are defined and before flags are accessed by the program.
+func Parse() {
+	// Ignore errors; CommandLine is set for ExitOnError.
+	CommandLine.Parse(os.Args[1:])
+}
+
+// SetInterspersed sets whether to support interspersed option/non-option arguments.
+func SetInterspersed(interspersed bool) {
+	CommandLine.SetInterspersed(interspersed)
+}
+
+// Parsed returns true if the command-line flags have been parsed.
+func Parsed() bool {
+	return CommandLine.Parsed()
+}
+
+// The default set of command-line flags, parsed from os.Args.
+var CommandLine = NewFlagSet(os.Args[0], ExitOnError)
+
+// NewFlagSet returns a new, empty flag set with the specified name and
+// error handling property.
+func NewFlagSet(name string, errorHandling ErrorHandling) *FlagSet {
+	f := &FlagSet{
+		name:          name,
+		errorHandling: errorHandling,
+		argsLenAtDash: -1,
+		interspersed:  true,
+	}
+	return f
+}
+
+// SetInterspersed sets whether to support interspersed option/non-option arguments.
+func (f *FlagSet) SetInterspersed(interspersed bool) {
+	f.interspersed = interspersed
+}
+
+// Init sets the name and error handling property for a flag set.
+// By default, the zero FlagSet uses an empty name and the
+// ContinueOnError error handling policy.
+func (f *FlagSet) Init(name string, errorHandling ErrorHandling) {
+	f.name = name
+	f.errorHandling = errorHandling
+	f.argsLenAtDash = -1
+}
diff --git a/vendor/github.com/spf13/pflag/float32.go b/vendor/github.com/spf13/pflag/float32.go
new file mode 100644
index 0000000..7683fae
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/float32.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- float32 Value
+type float32Value float32
+
+func newFloat32Value(val float32, p *float32) *float32Value {
+	*p = val
+	return (*float32Value)(p)
+}
+
+func (f *float32Value) Set(s string) error {
+	v, err := strconv.ParseFloat(s, 32)
+	*f = float32Value(v)
+	return err
+}
+
+func (f *float32Value) Type() string {
+	return "float32"
+}
+
+func (f *float32Value) String() string { return fmt.Sprintf("%v", *f) }
+
+func float32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseFloat(sval, 32)
+	if err != nil {
+		return 0, err
+	}
+	return float32(v), nil
+}
+
+// GetFloat32 return the float32 value of a flag with the given name
+func (f *FlagSet) GetFloat32(name string) (float32, error) {
+	val, err := f.getFlagType(name, "float32", float32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(float32), nil
+}
+
+// Float32Var defines a float32 flag with specified name, default value, and usage string.
+// The argument p points to a float32 variable in which to store the value of the flag.
+func (f *FlagSet) Float32Var(p *float32, name string, value float32, usage string) {
+	f.VarP(newFloat32Value(value, p), name, "", usage)
+}
+
+// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
+	f.VarP(newFloat32Value(value, p), name, shorthand, usage)
+}
+
+// Float32Var defines a float32 flag with specified name, default value, and usage string.
+// The argument p points to a float32 variable in which to store the value of the flag.
+func Float32Var(p *float32, name string, value float32, usage string) {
+	CommandLine.VarP(newFloat32Value(value, p), name, "", usage)
+}
+
+// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
+func Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
+	CommandLine.VarP(newFloat32Value(value, p), name, shorthand, usage)
+}
+
+// Float32 defines a float32 flag with specified name, default value, and usage string.
+// The return value is the address of a float32 variable that stores the value of the flag.
+func (f *FlagSet) Float32(name string, value float32, usage string) *float32 {
+	p := new(float32)
+	f.Float32VarP(p, name, "", value, usage)
+	return p
+}
+
+// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float32P(name, shorthand string, value float32, usage string) *float32 {
+	p := new(float32)
+	f.Float32VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Float32 defines a float32 flag with specified name, default value, and usage string.
+// The return value is the address of a float32 variable that stores the value of the flag.
+func Float32(name string, value float32, usage string) *float32 {
+	return CommandLine.Float32P(name, "", value, usage)
+}
+
+// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
+func Float32P(name, shorthand string, value float32, usage string) *float32 {
+	return CommandLine.Float32P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/float64.go b/vendor/github.com/spf13/pflag/float64.go
new file mode 100644
index 0000000..50fbf8c
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/float64.go
@@ -0,0 +1,87 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- float64 Value
+type float64Value float64
+
+func newFloat64Value(val float64, p *float64) *float64Value {
+	*p = val
+	return (*float64Value)(p)
+}
+
+func (f *float64Value) Set(s string) error {
+	v, err := strconv.ParseFloat(s, 64)
+	*f = float64Value(v)
+	return err
+}
+
+func (f *float64Value) Type() string {
+	return "float64"
+}
+
+func (f *float64Value) String() string { return fmt.Sprintf("%v", *f) }
+
+func float64Conv(sval string) (interface{}, error) {
+	return strconv.ParseFloat(sval, 64)
+}
+
+// GetFloat64 return the float64 value of a flag with the given name
+func (f *FlagSet) GetFloat64(name string) (float64, error) {
+	val, err := f.getFlagType(name, "float64", float64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(float64), nil
+}
+
+// Float64Var defines a float64 flag with specified name, default value, and usage string.
+// The argument p points to a float64 variable in which to store the value of the flag.
+func (f *FlagSet) Float64Var(p *float64, name string, value float64, usage string) {
+	f.VarP(newFloat64Value(value, p), name, "", usage)
+}
+
+// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
+	f.VarP(newFloat64Value(value, p), name, shorthand, usage)
+}
+
+// Float64Var defines a float64 flag with specified name, default value, and usage string.
+// The argument p points to a float64 variable in which to store the value of the flag.
+func Float64Var(p *float64, name string, value float64, usage string) {
+	CommandLine.VarP(newFloat64Value(value, p), name, "", usage)
+}
+
+// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
+func Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
+	CommandLine.VarP(newFloat64Value(value, p), name, shorthand, usage)
+}
+
+// Float64 defines a float64 flag with specified name, default value, and usage string.
+// The return value is the address of a float64 variable that stores the value of the flag.
+func (f *FlagSet) Float64(name string, value float64, usage string) *float64 {
+	p := new(float64)
+	f.Float64VarP(p, name, "", value, usage)
+	return p
+}
+
+// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float64P(name, shorthand string, value float64, usage string) *float64 {
+	p := new(float64)
+	f.Float64VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Float64 defines a float64 flag with specified name, default value, and usage string.
+// The return value is the address of a float64 variable that stores the value of the flag.
+func Float64(name string, value float64, usage string) *float64 {
+	return CommandLine.Float64P(name, "", value, usage)
+}
+
+// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
+func Float64P(name, shorthand string, value float64, usage string) *float64 {
+	return CommandLine.Float64P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/golangflag.go b/vendor/github.com/spf13/pflag/golangflag.go
new file mode 100644
index 0000000..a8c24ef
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/golangflag.go
@@ -0,0 +1,97 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package pflag
+
+import (
+	goflag "flag"
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+var _ = fmt.Print
+
+// flagValueWrapper implements pflag.Value around a flag.Value.  The main
+// difference here is the addition of the Type method that returns a string
+// name of the type.  As this is generally unknown, we approximate that with
+// reflection.
+type flagValueWrapper struct {
+	inner    goflag.Value
+	flagType string
+}
+
+// We are just copying the boolFlag interface out of goflag as that is what
+// they use to decide if a flag should get "true" when no arg is given.
+type goBoolFlag interface {
+	goflag.Value
+	IsBoolFlag() bool
+}
+
+func wrapFlagValue(v goflag.Value) Value {
+	// If the flag.Value happens to also be a pflag.Value, just use it directly.
+	if pv, ok := v.(Value); ok {
+		return pv
+	}
+
+	pv := &flagValueWrapper{
+		inner: v,
+	}
+
+	t := reflect.TypeOf(v)
+	if t.Kind() == reflect.Interface || t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+
+	pv.flagType = strings.TrimSuffix(t.Name(), "Value")
+	return pv
+}
+
+func (v *flagValueWrapper) String() string {
+	return v.inner.String()
+}
+
+func (v *flagValueWrapper) Set(s string) error {
+	return v.inner.Set(s)
+}
+
+func (v *flagValueWrapper) Type() string {
+	return v.flagType
+}
+
+// PFlagFromGoFlag will return a *pflag.Flag given a *flag.Flag
+func PFlagFromGoFlag(goflag *goflag.Flag) *Flag {
+	// Remember the default value as a string; it won't change.
+	flag := &Flag{
+		Name:  goflag.Name,
+		Usage: goflag.Usage,
+		Value: wrapFlagValue(goflag.Value),
+		// Looks like golang flags don't set DefValue correctly  :-(
+		//DefValue: goflag.DefValue,
+		DefValue: goflag.Value.String(),
+	}
+	if fv, ok := goflag.Value.(goBoolFlag); ok && fv.IsBoolFlag() {
+		flag.NoOptDefVal = "true"
+	}
+	return flag
+}
+
+// AddGoFlag will add the given *flag.Flag to the pflag.FlagSet
+func (f *FlagSet) AddGoFlag(goflag *goflag.Flag) {
+	if f.Lookup(goflag.Name) != nil {
+		return
+	}
+	newflag := PFlagFromGoFlag(goflag)
+	f.AddFlag(newflag)
+}
+
+// AddGoFlagSet will add the given *flag.FlagSet to the pflag.FlagSet
+func (f *FlagSet) AddGoFlagSet(newSet *goflag.FlagSet) {
+	if newSet == nil {
+		return
+	}
+	newSet.VisitAll(func(goflag *goflag.Flag) {
+		f.AddGoFlag(goflag)
+	})
+}
diff --git a/vendor/github.com/spf13/pflag/int.go b/vendor/github.com/spf13/pflag/int.go
new file mode 100644
index 0000000..b656036
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int.go
@@ -0,0 +1,87 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- int Value
+type intValue int
+
+func newIntValue(val int, p *int) *intValue {
+	*p = val
+	return (*intValue)(p)
+}
+
+func (i *intValue) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 64)
+	*i = intValue(v)
+	return err
+}
+
+func (i *intValue) Type() string {
+	return "int"
+}
+
+func (i *intValue) String() string { return fmt.Sprintf("%v", *i) }
+
+func intConv(sval string) (interface{}, error) {
+	return strconv.Atoi(sval)
+}
+
+// GetInt return the int value of a flag with the given name
+func (f *FlagSet) GetInt(name string) (int, error) {
+	val, err := f.getFlagType(name, "int", intConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int), nil
+}
+
+// IntVar defines an int flag with specified name, default value, and usage string.
+// The argument p points to an int variable in which to store the value of the flag.
+func (f *FlagSet) IntVar(p *int, name string, value int, usage string) {
+	f.VarP(newIntValue(value, p), name, "", usage)
+}
+
+// IntVarP is like IntVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntVarP(p *int, name, shorthand string, value int, usage string) {
+	f.VarP(newIntValue(value, p), name, shorthand, usage)
+}
+
+// IntVar defines an int flag with specified name, default value, and usage string.
+// The argument p points to an int variable in which to store the value of the flag.
+func IntVar(p *int, name string, value int, usage string) {
+	CommandLine.VarP(newIntValue(value, p), name, "", usage)
+}
+
+// IntVarP is like IntVar, but accepts a shorthand letter that can be used after a single dash.
+func IntVarP(p *int, name, shorthand string, value int, usage string) {
+	CommandLine.VarP(newIntValue(value, p), name, shorthand, usage)
+}
+
+// Int defines an int flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+func (f *FlagSet) Int(name string, value int, usage string) *int {
+	p := new(int)
+	f.IntVarP(p, name, "", value, usage)
+	return p
+}
+
+// IntP is like Int, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntP(name, shorthand string, value int, usage string) *int {
+	p := new(int)
+	f.IntVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int defines an int flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+func Int(name string, value int, usage string) *int {
+	return CommandLine.IntP(name, "", value, usage)
+}
+
+// IntP is like Int, but accepts a shorthand letter that can be used after a single dash.
+func IntP(name, shorthand string, value int, usage string) *int {
+	return CommandLine.IntP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/int32.go b/vendor/github.com/spf13/pflag/int32.go
new file mode 100644
index 0000000..41659a9
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int32.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- int32 Value
+type int32Value int32
+
+func newInt32Value(val int32, p *int32) *int32Value {
+	*p = val
+	return (*int32Value)(p)
+}
+
+func (i *int32Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 32)
+	*i = int32Value(v)
+	return err
+}
+
+func (i *int32Value) Type() string {
+	return "int32"
+}
+
+func (i *int32Value) String() string { return fmt.Sprintf("%v", *i) }
+
+func int32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseInt(sval, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return int32(v), nil
+}
+
+// GetInt32 return the int32 value of a flag with the given name
+func (f *FlagSet) GetInt32(name string) (int32, error) {
+	val, err := f.getFlagType(name, "int32", int32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int32), nil
+}
+
+// Int32Var defines an int32 flag with specified name, default value, and usage string.
+// The argument p points to an int32 variable in which to store the value of the flag.
+func (f *FlagSet) Int32Var(p *int32, name string, value int32, usage string) {
+	f.VarP(newInt32Value(value, p), name, "", usage)
+}
+
+// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
+	f.VarP(newInt32Value(value, p), name, shorthand, usage)
+}
+
+// Int32Var defines an int32 flag with specified name, default value, and usage string.
+// The argument p points to an int32 variable in which to store the value of the flag.
+func Int32Var(p *int32, name string, value int32, usage string) {
+	CommandLine.VarP(newInt32Value(value, p), name, "", usage)
+}
+
+// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
+func Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
+	CommandLine.VarP(newInt32Value(value, p), name, shorthand, usage)
+}
+
+// Int32 defines an int32 flag with specified name, default value, and usage string.
+// The return value is the address of an int32 variable that stores the value of the flag.
+func (f *FlagSet) Int32(name string, value int32, usage string) *int32 {
+	p := new(int32)
+	f.Int32VarP(p, name, "", value, usage)
+	return p
+}
+
+// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int32P(name, shorthand string, value int32, usage string) *int32 {
+	p := new(int32)
+	f.Int32VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int32 defines an int32 flag with specified name, default value, and usage string.
+// The return value is the address of an int32 variable that stores the value of the flag.
+func Int32(name string, value int32, usage string) *int32 {
+	return CommandLine.Int32P(name, "", value, usage)
+}
+
+// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
+func Int32P(name, shorthand string, value int32, usage string) *int32 {
+	return CommandLine.Int32P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/int64.go b/vendor/github.com/spf13/pflag/int64.go
new file mode 100644
index 0000000..6e67e38
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int64.go
@@ -0,0 +1,87 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- int64 Value
+type int64Value int64
+
+func newInt64Value(val int64, p *int64) *int64Value {
+	*p = val
+	return (*int64Value)(p)
+}
+
+func (i *int64Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 64)
+	*i = int64Value(v)
+	return err
+}
+
+func (i *int64Value) Type() string {
+	return "int64"
+}
+
+func (i *int64Value) String() string { return fmt.Sprintf("%v", *i) }
+
+func int64Conv(sval string) (interface{}, error) {
+	return strconv.ParseInt(sval, 0, 64)
+}
+
+// GetInt64 return the int64 value of a flag with the given name
+func (f *FlagSet) GetInt64(name string) (int64, error) {
+	val, err := f.getFlagType(name, "int64", int64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int64), nil
+}
+
+// Int64Var defines an int64 flag with specified name, default value, and usage string.
+// The argument p points to an int64 variable in which to store the value of the flag.
+func (f *FlagSet) Int64Var(p *int64, name string, value int64, usage string) {
+	f.VarP(newInt64Value(value, p), name, "", usage)
+}
+
+// Int64VarP is like Int64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int64VarP(p *int64, name, shorthand string, value int64, usage string) {
+	f.VarP(newInt64Value(value, p), name, shorthand, usage)
+}
+
+// Int64Var defines an int64 flag with specified name, default value, and usage string.
+// The argument p points to an int64 variable in which to store the value of the flag.
+func Int64Var(p *int64, name string, value int64, usage string) {
+	CommandLine.VarP(newInt64Value(value, p), name, "", usage)
+}
+
+// Int64VarP is like Int64Var, but accepts a shorthand letter that can be used after a single dash.
+func Int64VarP(p *int64, name, shorthand string, value int64, usage string) {
+	CommandLine.VarP(newInt64Value(value, p), name, shorthand, usage)
+}
+
+// Int64 defines an int64 flag with specified name, default value, and usage string.
+// The return value is the address of an int64 variable that stores the value of the flag.
+func (f *FlagSet) Int64(name string, value int64, usage string) *int64 {
+	p := new(int64)
+	f.Int64VarP(p, name, "", value, usage)
+	return p
+}
+
+// Int64P is like Int64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int64P(name, shorthand string, value int64, usage string) *int64 {
+	p := new(int64)
+	f.Int64VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int64 defines an int64 flag with specified name, default value, and usage string.
+// The return value is the address of an int64 variable that stores the value of the flag.
+func Int64(name string, value int64, usage string) *int64 {
+	return CommandLine.Int64P(name, "", value, usage)
+}
+
+// Int64P is like Int64, but accepts a shorthand letter that can be used after a single dash.
+func Int64P(name, shorthand string, value int64, usage string) *int64 {
+	return CommandLine.Int64P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/int8.go b/vendor/github.com/spf13/pflag/int8.go
new file mode 100644
index 0000000..400db21
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int8.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- int8 Value
+type int8Value int8
+
+func newInt8Value(val int8, p *int8) *int8Value {
+	*p = val
+	return (*int8Value)(p)
+}
+
+func (i *int8Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 8)
+	*i = int8Value(v)
+	return err
+}
+
+func (i *int8Value) Type() string {
+	return "int8"
+}
+
+func (i *int8Value) String() string { return fmt.Sprintf("%v", *i) }
+
+func int8Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseInt(sval, 0, 8)
+	if err != nil {
+		return 0, err
+	}
+	return int8(v), nil
+}
+
+// GetInt8 return the int8 value of a flag with the given name
+func (f *FlagSet) GetInt8(name string) (int8, error) {
+	val, err := f.getFlagType(name, "int8", int8Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int8), nil
+}
+
+// Int8Var defines an int8 flag with specified name, default value, and usage string.
+// The argument p points to an int8 variable in which to store the value of the flag.
+func (f *FlagSet) Int8Var(p *int8, name string, value int8, usage string) {
+	f.VarP(newInt8Value(value, p), name, "", usage)
+}
+
+// Int8VarP is like Int8Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int8VarP(p *int8, name, shorthand string, value int8, usage string) {
+	f.VarP(newInt8Value(value, p), name, shorthand, usage)
+}
+
+// Int8Var defines an int8 flag with specified name, default value, and usage string.
+// The argument p points to an int8 variable in which to store the value of the flag.
+func Int8Var(p *int8, name string, value int8, usage string) {
+	CommandLine.VarP(newInt8Value(value, p), name, "", usage)
+}
+
+// Int8VarP is like Int8Var, but accepts a shorthand letter that can be used after a single dash.
+func Int8VarP(p *int8, name, shorthand string, value int8, usage string) {
+	CommandLine.VarP(newInt8Value(value, p), name, shorthand, usage)
+}
+
+// Int8 defines an int8 flag with specified name, default value, and usage string.
+// The return value is the address of an int8 variable that stores the value of the flag.
+func (f *FlagSet) Int8(name string, value int8, usage string) *int8 {
+	p := new(int8)
+	f.Int8VarP(p, name, "", value, usage)
+	return p
+}
+
+// Int8P is like Int8, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int8P(name, shorthand string, value int8, usage string) *int8 {
+	p := new(int8)
+	f.Int8VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int8 defines an int8 flag with specified name, default value, and usage string.
+// The return value is the address of an int8 variable that stores the value of the flag.
+func Int8(name string, value int8, usage string) *int8 {
+	return CommandLine.Int8P(name, "", value, usage)
+}
+
+// Int8P is like Int8, but accepts a shorthand letter that can be used after a single dash.
+func Int8P(name, shorthand string, value int8, usage string) *int8 {
+	return CommandLine.Int8P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/int_slice.go b/vendor/github.com/spf13/pflag/int_slice.go
new file mode 100644
index 0000000..1e7c9ed
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int_slice.go
@@ -0,0 +1,128 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- intSlice Value
+type intSliceValue struct {
+	value   *[]int
+	changed bool
+}
+
+func newIntSliceValue(val []int, p *[]int) *intSliceValue {
+	isv := new(intSliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *intSliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]int, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.Atoi(d)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *intSliceValue) Type() string {
+	return "intSlice"
+}
+
+func (s *intSliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func intSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []int{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]int, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.Atoi(d)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetIntSlice return the []int value of a flag with the given name
+func (f *FlagSet) GetIntSlice(name string) ([]int, error) {
+	val, err := f.getFlagType(name, "intSlice", intSliceConv)
+	if err != nil {
+		return []int{}, err
+	}
+	return val.([]int), nil
+}
+
+// IntSliceVar defines a intSlice flag with specified name, default value, and usage string.
+// The argument p points to a []int variable in which to store the value of the flag.
+func (f *FlagSet) IntSliceVar(p *[]int, name string, value []int, usage string) {
+	f.VarP(newIntSliceValue(value, p), name, "", usage)
+}
+
+// IntSliceVarP is like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
+	f.VarP(newIntSliceValue(value, p), name, shorthand, usage)
+}
+
+// IntSliceVar defines a int[] flag with specified name, default value, and usage string.
+// The argument p points to a int[] variable in which to store the value of the flag.
+func IntSliceVar(p *[]int, name string, value []int, usage string) {
+	CommandLine.VarP(newIntSliceValue(value, p), name, "", usage)
+}
+
+// IntSliceVarP is like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
+	CommandLine.VarP(newIntSliceValue(value, p), name, shorthand, usage)
+}
+
+// IntSlice defines a []int flag with specified name, default value, and usage string.
+// The return value is the address of a []int variable that stores the value of the flag.
+func (f *FlagSet) IntSlice(name string, value []int, usage string) *[]int {
+	p := []int{}
+	f.IntSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// IntSliceP is like IntSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntSliceP(name, shorthand string, value []int, usage string) *[]int {
+	p := []int{}
+	f.IntSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// IntSlice defines a []int flag with specified name, default value, and usage string.
+// The return value is the address of a []int variable that stores the value of the flag.
+func IntSlice(name string, value []int, usage string) *[]int {
+	return CommandLine.IntSliceP(name, "", value, usage)
+}
+
+// IntSliceP is like IntSlice, but accepts a shorthand letter that can be used after a single dash.
+func IntSliceP(name, shorthand string, value []int, usage string) *[]int {
+	return CommandLine.IntSliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/ip.go b/vendor/github.com/spf13/pflag/ip.go
new file mode 100644
index 0000000..88a1743
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/ip.go
@@ -0,0 +1,96 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+var _ = strings.TrimSpace
+
+// -- net.IP value
+type ipValue net.IP
+
+func newIPValue(val net.IP, p *net.IP) *ipValue {
+	*p = val
+	return (*ipValue)(p)
+}
+
+func (i *ipValue) String() string { return net.IP(*i).String() }
+func (i *ipValue) Set(s string) error {
+	ip := net.ParseIP(strings.TrimSpace(s))
+	if ip == nil {
+		return fmt.Errorf("failed to parse IP: %q", s)
+	}
+	*i = ipValue(ip)
+	return nil
+}
+
+func (i *ipValue) Type() string {
+	return "ip"
+}
+
+func ipConv(sval string) (interface{}, error) {
+	ip := net.ParseIP(sval)
+	if ip != nil {
+		return ip, nil
+	}
+	return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
+}
+
+// GetIP return the net.IP value of a flag with the given name
+func (f *FlagSet) GetIP(name string) (net.IP, error) {
+	val, err := f.getFlagType(name, "ip", ipConv)
+	if err != nil {
+		return nil, err
+	}
+	return val.(net.IP), nil
+}
+
+// IPVar defines an net.IP flag with specified name, default value, and usage string.
+// The argument p points to an net.IP variable in which to store the value of the flag.
+func (f *FlagSet) IPVar(p *net.IP, name string, value net.IP, usage string) {
+	f.VarP(newIPValue(value, p), name, "", usage)
+}
+
+// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
+	f.VarP(newIPValue(value, p), name, shorthand, usage)
+}
+
+// IPVar defines an net.IP flag with specified name, default value, and usage string.
+// The argument p points to an net.IP variable in which to store the value of the flag.
+func IPVar(p *net.IP, name string, value net.IP, usage string) {
+	CommandLine.VarP(newIPValue(value, p), name, "", usage)
+}
+
+// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
+func IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
+	CommandLine.VarP(newIPValue(value, p), name, shorthand, usage)
+}
+
+// IP defines an net.IP flag with specified name, default value, and usage string.
+// The return value is the address of an net.IP variable that stores the value of the flag.
+func (f *FlagSet) IP(name string, value net.IP, usage string) *net.IP {
+	p := new(net.IP)
+	f.IPVarP(p, name, "", value, usage)
+	return p
+}
+
+// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPP(name, shorthand string, value net.IP, usage string) *net.IP {
+	p := new(net.IP)
+	f.IPVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// IP defines an net.IP flag with specified name, default value, and usage string.
+// The return value is the address of an net.IP variable that stores the value of the flag.
+func IP(name string, value net.IP, usage string) *net.IP {
+	return CommandLine.IPP(name, "", value, usage)
+}
+
+// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
+func IPP(name, shorthand string, value net.IP, usage string) *net.IP {
+	return CommandLine.IPP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/ipmask.go b/vendor/github.com/spf13/pflag/ipmask.go
new file mode 100644
index 0000000..5bd44bd
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/ipmask.go
@@ -0,0 +1,122 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strconv"
+)
+
+// -- net.IPMask value
+type ipMaskValue net.IPMask
+
+func newIPMaskValue(val net.IPMask, p *net.IPMask) *ipMaskValue {
+	*p = val
+	return (*ipMaskValue)(p)
+}
+
+func (i *ipMaskValue) String() string { return net.IPMask(*i).String() }
+func (i *ipMaskValue) Set(s string) error {
+	ip := ParseIPv4Mask(s)
+	if ip == nil {
+		return fmt.Errorf("failed to parse IP mask: %q", s)
+	}
+	*i = ipMaskValue(ip)
+	return nil
+}
+
+func (i *ipMaskValue) Type() string {
+	return "ipMask"
+}
+
+// ParseIPv4Mask written in IP form (e.g. 255.255.255.0).
+// This function should really belong to the net package.
+func ParseIPv4Mask(s string) net.IPMask {
+	mask := net.ParseIP(s)
+	if mask == nil {
+		if len(s) != 8 {
+			return nil
+		}
+		// net.IPMask.String() actually outputs things like ffffff00
+		// so write a horrible parser for that as well  :-(
+		m := []int{}
+		for i := 0; i < 4; i++ {
+			b := "0x" + s[2*i:2*i+2]
+			d, err := strconv.ParseInt(b, 0, 0)
+			if err != nil {
+				return nil
+			}
+			m = append(m, int(d))
+		}
+		s := fmt.Sprintf("%d.%d.%d.%d", m[0], m[1], m[2], m[3])
+		mask = net.ParseIP(s)
+		if mask == nil {
+			return nil
+		}
+	}
+	return net.IPv4Mask(mask[12], mask[13], mask[14], mask[15])
+}
+
+func parseIPv4Mask(sval string) (interface{}, error) {
+	mask := ParseIPv4Mask(sval)
+	if mask == nil {
+		return nil, fmt.Errorf("unable to parse %s as net.IPMask", sval)
+	}
+	return mask, nil
+}
+
+// GetIPv4Mask return the net.IPv4Mask value of a flag with the given name
+func (f *FlagSet) GetIPv4Mask(name string) (net.IPMask, error) {
+	val, err := f.getFlagType(name, "ipMask", parseIPv4Mask)
+	if err != nil {
+		return nil, err
+	}
+	return val.(net.IPMask), nil
+}
+
+// IPMaskVar defines an net.IPMask flag with specified name, default value, and usage string.
+// The argument p points to an net.IPMask variable in which to store the value of the flag.
+func (f *FlagSet) IPMaskVar(p *net.IPMask, name string, value net.IPMask, usage string) {
+	f.VarP(newIPMaskValue(value, p), name, "", usage)
+}
+
+// IPMaskVarP is like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPMaskVarP(p *net.IPMask, name, shorthand string, value net.IPMask, usage string) {
+	f.VarP(newIPMaskValue(value, p), name, shorthand, usage)
+}
+
+// IPMaskVar defines an net.IPMask flag with specified name, default value, and usage string.
+// The argument p points to an net.IPMask variable in which to store the value of the flag.
+func IPMaskVar(p *net.IPMask, name string, value net.IPMask, usage string) {
+	CommandLine.VarP(newIPMaskValue(value, p), name, "", usage)
+}
+
+// IPMaskVarP is like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
+func IPMaskVarP(p *net.IPMask, name, shorthand string, value net.IPMask, usage string) {
+	CommandLine.VarP(newIPMaskValue(value, p), name, shorthand, usage)
+}
+
+// IPMask defines an net.IPMask flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPMask variable that stores the value of the flag.
+func (f *FlagSet) IPMask(name string, value net.IPMask, usage string) *net.IPMask {
+	p := new(net.IPMask)
+	f.IPMaskVarP(p, name, "", value, usage)
+	return p
+}
+
+// IPMaskP is like IPMask, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPMaskP(name, shorthand string, value net.IPMask, usage string) *net.IPMask {
+	p := new(net.IPMask)
+	f.IPMaskVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// IPMask defines an net.IPMask flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPMask variable that stores the value of the flag.
+func IPMask(name string, value net.IPMask, usage string) *net.IPMask {
+	return CommandLine.IPMaskP(name, "", value, usage)
+}
+
+// IPMaskP is like IP, but accepts a shorthand letter that can be used after a single dash.
+func IPMaskP(name, shorthand string, value net.IPMask, usage string) *net.IPMask {
+	return CommandLine.IPMaskP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/ipnet.go b/vendor/github.com/spf13/pflag/ipnet.go
new file mode 100644
index 0000000..149b764
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/ipnet.go
@@ -0,0 +1,100 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+// IPNet adapts net.IPNet for use as a flag.
+type ipNetValue net.IPNet
+
+func (ipnet ipNetValue) String() string {
+	n := net.IPNet(ipnet)
+	return n.String()
+}
+
+func (ipnet *ipNetValue) Set(value string) error {
+	_, n, err := net.ParseCIDR(strings.TrimSpace(value))
+	if err != nil {
+		return err
+	}
+	*ipnet = ipNetValue(*n)
+	return nil
+}
+
+func (*ipNetValue) Type() string {
+	return "ipNet"
+}
+
+var _ = strings.TrimSpace
+
+func newIPNetValue(val net.IPNet, p *net.IPNet) *ipNetValue {
+	*p = val
+	return (*ipNetValue)(p)
+}
+
+func ipNetConv(sval string) (interface{}, error) {
+	_, n, err := net.ParseCIDR(strings.TrimSpace(sval))
+	if err == nil {
+		return *n, nil
+	}
+	return nil, fmt.Errorf("invalid string being converted to IPNet: %s", sval)
+}
+
+// GetIPNet return the net.IPNet value of a flag with the given name
+func (f *FlagSet) GetIPNet(name string) (net.IPNet, error) {
+	val, err := f.getFlagType(name, "ipNet", ipNetConv)
+	if err != nil {
+		return net.IPNet{}, err
+	}
+	return val.(net.IPNet), nil
+}
+
+// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
+// The argument p points to an net.IPNet variable in which to store the value of the flag.
+func (f *FlagSet) IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
+	f.VarP(newIPNetValue(value, p), name, "", usage)
+}
+
+// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
+	f.VarP(newIPNetValue(value, p), name, shorthand, usage)
+}
+
+// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
+// The argument p points to an net.IPNet variable in which to store the value of the flag.
+func IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
+	CommandLine.VarP(newIPNetValue(value, p), name, "", usage)
+}
+
+// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
+func IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
+	CommandLine.VarP(newIPNetValue(value, p), name, shorthand, usage)
+}
+
+// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPNet variable that stores the value of the flag.
+func (f *FlagSet) IPNet(name string, value net.IPNet, usage string) *net.IPNet {
+	p := new(net.IPNet)
+	f.IPNetVarP(p, name, "", value, usage)
+	return p
+}
+
+// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
+	p := new(net.IPNet)
+	f.IPNetVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPNet variable that stores the value of the flag.
+func IPNet(name string, value net.IPNet, usage string) *net.IPNet {
+	return CommandLine.IPNetP(name, "", value, usage)
+}
+
+// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
+func IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
+	return CommandLine.IPNetP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/string.go b/vendor/github.com/spf13/pflag/string.go
new file mode 100644
index 0000000..e296136
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/string.go
@@ -0,0 +1,82 @@
+package pflag
+
+import "fmt"
+
+// -- string Value
+type stringValue string
+
+func newStringValue(val string, p *string) *stringValue {
+	*p = val
+	return (*stringValue)(p)
+}
+
+func (s *stringValue) Set(val string) error {
+	*s = stringValue(val)
+	return nil
+}
+func (s *stringValue) Type() string {
+	return "string"
+}
+
+func (s *stringValue) String() string { return fmt.Sprintf("%s", *s) }
+
+func stringConv(sval string) (interface{}, error) {
+	return sval, nil
+}
+
+// GetString return the string value of a flag with the given name
+func (f *FlagSet) GetString(name string) (string, error) {
+	val, err := f.getFlagType(name, "string", stringConv)
+	if err != nil {
+		return "", err
+	}
+	return val.(string), nil
+}
+
+// StringVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a string variable in which to store the value of the flag.
+func (f *FlagSet) StringVar(p *string, name string, value string, usage string) {
+	f.VarP(newStringValue(value, p), name, "", usage)
+}
+
+// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringVarP(p *string, name, shorthand string, value string, usage string) {
+	f.VarP(newStringValue(value, p), name, shorthand, usage)
+}
+
+// StringVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a string variable in which to store the value of the flag.
+func StringVar(p *string, name string, value string, usage string) {
+	CommandLine.VarP(newStringValue(value, p), name, "", usage)
+}
+
+// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
+func StringVarP(p *string, name, shorthand string, value string, usage string) {
+	CommandLine.VarP(newStringValue(value, p), name, shorthand, usage)
+}
+
+// String defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a string variable that stores the value of the flag.
+func (f *FlagSet) String(name string, value string, usage string) *string {
+	p := new(string)
+	f.StringVarP(p, name, "", value, usage)
+	return p
+}
+
+// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringP(name, shorthand string, value string, usage string) *string {
+	p := new(string)
+	f.StringVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// String defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a string variable that stores the value of the flag.
+func String(name string, value string, usage string) *string {
+	return CommandLine.StringP(name, "", value, usage)
+}
+
+// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
+func StringP(name, shorthand string, value string, usage string) *string {
+	return CommandLine.StringP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/string_slice.go b/vendor/github.com/spf13/pflag/string_slice.go
new file mode 100644
index 0000000..0b7ddfe
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/string_slice.go
@@ -0,0 +1,105 @@
+package pflag
+
+import (
+	"fmt"
+	"strings"
+)
+
+var _ = fmt.Fprint
+
+// -- stringSlice Value
+type stringSliceValue struct {
+	value   *[]string
+	changed bool
+}
+
+func newStringSliceValue(val []string, p *[]string) *stringSliceValue {
+	ssv := new(stringSliceValue)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+func (s *stringSliceValue) Set(val string) error {
+	v := strings.Split(val, ",")
+	if !s.changed {
+		*s.value = v
+	} else {
+		*s.value = append(*s.value, v...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *stringSliceValue) Type() string {
+	return "stringSlice"
+}
+
+func (s *stringSliceValue) String() string { return "[" + strings.Join(*s.value, ",") + "]" }
+
+func stringSliceConv(sval string) (interface{}, error) {
+	sval = strings.Trim(sval, "[]")
+	// An empty string would cause a slice with one (empty) string
+	if len(sval) == 0 {
+		return []string{}, nil
+	}
+	v := strings.Split(sval, ",")
+	return v, nil
+}
+
+// GetStringSlice return the []string value of a flag with the given name
+func (f *FlagSet) GetStringSlice(name string) ([]string, error) {
+	val, err := f.getFlagType(name, "stringSlice", stringSliceConv)
+	if err != nil {
+		return []string{}, err
+	}
+	return val.([]string), nil
+}
+
+// StringSliceVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the value of the flag.
+func (f *FlagSet) StringSliceVar(p *[]string, name string, value []string, usage string) {
+	f.VarP(newStringSliceValue(value, p), name, "", usage)
+}
+
+// StringSliceVarP is like StringSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringSliceVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	f.VarP(newStringSliceValue(value, p), name, shorthand, usage)
+}
+
+// StringSliceVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the value of the flag.
+func StringSliceVar(p *[]string, name string, value []string, usage string) {
+	CommandLine.VarP(newStringSliceValue(value, p), name, "", usage)
+}
+
+// StringSliceVarP is like StringSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func StringSliceVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	CommandLine.VarP(newStringSliceValue(value, p), name, shorthand, usage)
+}
+
+// StringSlice defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+func (f *FlagSet) StringSlice(name string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringSliceP is like StringSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringSliceP(name, shorthand string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringSlice defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+func StringSlice(name string, value []string, usage string) *[]string {
+	return CommandLine.StringSliceP(name, "", value, usage)
+}
+
+// StringSliceP is like StringSlice, but accepts a shorthand letter that can be used after a single dash.
+func StringSliceP(name, shorthand string, value []string, usage string) *[]string {
+	return CommandLine.StringSliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/uint.go b/vendor/github.com/spf13/pflag/uint.go
new file mode 100644
index 0000000..e142b49
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/uint.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- uint Value
+type uintValue uint
+
+func newUintValue(val uint, p *uint) *uintValue {
+	*p = val
+	return (*uintValue)(p)
+}
+
+func (i *uintValue) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 64)
+	*i = uintValue(v)
+	return err
+}
+
+func (i *uintValue) Type() string {
+	return "uint"
+}
+
+func (i *uintValue) String() string { return fmt.Sprintf("%v", *i) }
+
+func uintConv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 0)
+	if err != nil {
+		return 0, err
+	}
+	return uint(v), nil
+}
+
+// GetUint return the uint value of a flag with the given name
+func (f *FlagSet) GetUint(name string) (uint, error) {
+	val, err := f.getFlagType(name, "uint", uintConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint), nil
+}
+
+// UintVar defines a uint flag with specified name, default value, and usage string.
+// The argument p points to a uint variable in which to store the value of the flag.
+func (f *FlagSet) UintVar(p *uint, name string, value uint, usage string) {
+	f.VarP(newUintValue(value, p), name, "", usage)
+}
+
+// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) UintVarP(p *uint, name, shorthand string, value uint, usage string) {
+	f.VarP(newUintValue(value, p), name, shorthand, usage)
+}
+
+// UintVar defines a uint flag with specified name, default value, and usage string.
+// The argument p points to a uint  variable in which to store the value of the flag.
+func UintVar(p *uint, name string, value uint, usage string) {
+	CommandLine.VarP(newUintValue(value, p), name, "", usage)
+}
+
+// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash.
+func UintVarP(p *uint, name, shorthand string, value uint, usage string) {
+	CommandLine.VarP(newUintValue(value, p), name, shorthand, usage)
+}
+
+// Uint defines a uint flag with specified name, default value, and usage string.
+// The return value is the address of a uint  variable that stores the value of the flag.
+func (f *FlagSet) Uint(name string, value uint, usage string) *uint {
+	p := new(uint)
+	f.UintVarP(p, name, "", value, usage)
+	return p
+}
+
+// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) UintP(name, shorthand string, value uint, usage string) *uint {
+	p := new(uint)
+	f.UintVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint defines a uint flag with specified name, default value, and usage string.
+// The return value is the address of a uint  variable that stores the value of the flag.
+func Uint(name string, value uint, usage string) *uint {
+	return CommandLine.UintP(name, "", value, usage)
+}
+
+// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash.
+func UintP(name, shorthand string, value uint, usage string) *uint {
+	return CommandLine.UintP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/uint16.go b/vendor/github.com/spf13/pflag/uint16.go
new file mode 100644
index 0000000..5c96c19
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/uint16.go
@@ -0,0 +1,89 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- uint16 value
+type uint16Value uint16
+
+func newUint16Value(val uint16, p *uint16) *uint16Value {
+	*p = val
+	return (*uint16Value)(p)
+}
+func (i *uint16Value) String() string { return fmt.Sprintf("%d", *i) }
+func (i *uint16Value) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 16)
+	*i = uint16Value(v)
+	return err
+}
+
+func (i *uint16Value) Type() string {
+	return "uint16"
+}
+
+func uint16Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 16)
+	if err != nil {
+		return 0, err
+	}
+	return uint16(v), nil
+}
+
+// GetUint16 return the uint16 value of a flag with the given name
+func (f *FlagSet) GetUint16(name string) (uint16, error) {
+	val, err := f.getFlagType(name, "uint16", uint16Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint16), nil
+}
+
+// Uint16Var defines a uint flag with specified name, default value, and usage string.
+// The argument p points to a uint variable in which to store the value of the flag.
+func (f *FlagSet) Uint16Var(p *uint16, name string, value uint16, usage string) {
+	f.VarP(newUint16Value(value, p), name, "", usage)
+}
+
+// Uint16VarP is like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint16VarP(p *uint16, name, shorthand string, value uint16, usage string) {
+	f.VarP(newUint16Value(value, p), name, shorthand, usage)
+}
+
+// Uint16Var defines a uint flag with specified name, default value, and usage string.
+// The argument p points to a uint  variable in which to store the value of the flag.
+func Uint16Var(p *uint16, name string, value uint16, usage string) {
+	CommandLine.VarP(newUint16Value(value, p), name, "", usage)
+}
+
+// Uint16VarP is like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
+func Uint16VarP(p *uint16, name, shorthand string, value uint16, usage string) {
+	CommandLine.VarP(newUint16Value(value, p), name, shorthand, usage)
+}
+
+// Uint16 defines a uint flag with specified name, default value, and usage string.
+// The return value is the address of a uint  variable that stores the value of the flag.
+func (f *FlagSet) Uint16(name string, value uint16, usage string) *uint16 {
+	p := new(uint16)
+	f.Uint16VarP(p, name, "", value, usage)
+	return p
+}
+
+// Uint16P is like Uint16, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint16P(name, shorthand string, value uint16, usage string) *uint16 {
+	p := new(uint16)
+	f.Uint16VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint16 defines a uint flag with specified name, default value, and usage string.
+// The return value is the address of a uint  variable that stores the value of the flag.
+func Uint16(name string, value uint16, usage string) *uint16 {
+	return CommandLine.Uint16P(name, "", value, usage)
+}
+
+// Uint16P is like Uint16, but accepts a shorthand letter that can be used after a single dash.
+func Uint16P(name, shorthand string, value uint16, usage string) *uint16 {
+	return CommandLine.Uint16P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/uint32.go b/vendor/github.com/spf13/pflag/uint32.go
new file mode 100644
index 0000000..294fcaa
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/uint32.go
@@ -0,0 +1,89 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- uint16 value
+type uint32Value uint32
+
+func newUint32Value(val uint32, p *uint32) *uint32Value {
+	*p = val
+	return (*uint32Value)(p)
+}
+func (i *uint32Value) String() string { return fmt.Sprintf("%d", *i) }
+func (i *uint32Value) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 32)
+	*i = uint32Value(v)
+	return err
+}
+
+func (i *uint32Value) Type() string {
+	return "uint32"
+}
+
+func uint32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return uint32(v), nil
+}
+
+// GetUint32 return the uint32 value of a flag with the given name
+func (f *FlagSet) GetUint32(name string) (uint32, error) {
+	val, err := f.getFlagType(name, "uint32", uint32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint32), nil
+}
+
+// Uint32Var defines a uint32 flag with specified name, default value, and usage string.
+// The argument p points to a uint32 variable in which to store the value of the flag.
+func (f *FlagSet) Uint32Var(p *uint32, name string, value uint32, usage string) {
+	f.VarP(newUint32Value(value, p), name, "", usage)
+}
+
+// Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) {
+	f.VarP(newUint32Value(value, p), name, shorthand, usage)
+}
+
+// Uint32Var defines a uint32 flag with specified name, default value, and usage string.
+// The argument p points to a uint32  variable in which to store the value of the flag.
+func Uint32Var(p *uint32, name string, value uint32, usage string) {
+	CommandLine.VarP(newUint32Value(value, p), name, "", usage)
+}
+
+// Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
+func Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) {
+	CommandLine.VarP(newUint32Value(value, p), name, shorthand, usage)
+}
+
+// Uint32 defines a uint32 flag with specified name, default value, and usage string.
+// The return value is the address of a uint32  variable that stores the value of the flag.
+func (f *FlagSet) Uint32(name string, value uint32, usage string) *uint32 {
+	p := new(uint32)
+	f.Uint32VarP(p, name, "", value, usage)
+	return p
+}
+
+// Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint32P(name, shorthand string, value uint32, usage string) *uint32 {
+	p := new(uint32)
+	f.Uint32VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint32 defines a uint32 flag with specified name, default value, and usage string.
+// The return value is the address of a uint32  variable that stores the value of the flag.
+func Uint32(name string, value uint32, usage string) *uint32 {
+	return CommandLine.Uint32P(name, "", value, usage)
+}
+
+// Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash.
+func Uint32P(name, shorthand string, value uint32, usage string) *uint32 {
+	return CommandLine.Uint32P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/uint64.go b/vendor/github.com/spf13/pflag/uint64.go
new file mode 100644
index 0000000..c681885
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/uint64.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- uint64 Value
+type uint64Value uint64
+
+func newUint64Value(val uint64, p *uint64) *uint64Value {
+	*p = val
+	return (*uint64Value)(p)
+}
+
+func (i *uint64Value) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 64)
+	*i = uint64Value(v)
+	return err
+}
+
+func (i *uint64Value) Type() string {
+	return "uint64"
+}
+
+func (i *uint64Value) String() string { return fmt.Sprintf("%v", *i) }
+
+func uint64Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 64)
+	if err != nil {
+		return 0, err
+	}
+	return uint64(v), nil
+}
+
+// GetUint64 return the uint64 value of a flag with the given name
+func (f *FlagSet) GetUint64(name string) (uint64, error) {
+	val, err := f.getFlagType(name, "uint64", uint64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint64), nil
+}
+
+// Uint64Var defines a uint64 flag with specified name, default value, and usage string.
+// The argument p points to a uint64 variable in which to store the value of the flag.
+func (f *FlagSet) Uint64Var(p *uint64, name string, value uint64, usage string) {
+	f.VarP(newUint64Value(value, p), name, "", usage)
+}
+
+// Uint64VarP is like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
+	f.VarP(newUint64Value(value, p), name, shorthand, usage)
+}
+
+// Uint64Var defines a uint64 flag with specified name, default value, and usage string.
+// The argument p points to a uint64 variable in which to store the value of the flag.
+func Uint64Var(p *uint64, name string, value uint64, usage string) {
+	CommandLine.VarP(newUint64Value(value, p), name, "", usage)
+}
+
+// Uint64VarP is like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
+func Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
+	CommandLine.VarP(newUint64Value(value, p), name, shorthand, usage)
+}
+
+// Uint64 defines a uint64 flag with specified name, default value, and usage string.
+// The return value is the address of a uint64 variable that stores the value of the flag.
+func (f *FlagSet) Uint64(name string, value uint64, usage string) *uint64 {
+	p := new(uint64)
+	f.Uint64VarP(p, name, "", value, usage)
+	return p
+}
+
+// Uint64P is like Uint64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint64P(name, shorthand string, value uint64, usage string) *uint64 {
+	p := new(uint64)
+	f.Uint64VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint64 defines a uint64 flag with specified name, default value, and usage string.
+// The return value is the address of a uint64 variable that stores the value of the flag.
+func Uint64(name string, value uint64, usage string) *uint64 {
+	return CommandLine.Uint64P(name, "", value, usage)
+}
+
+// Uint64P is like Uint64, but accepts a shorthand letter that can be used after a single dash.
+func Uint64P(name, shorthand string, value uint64, usage string) *uint64 {
+	return CommandLine.Uint64P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/uint8.go b/vendor/github.com/spf13/pflag/uint8.go
new file mode 100644
index 0000000..26db418
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/uint8.go
@@ -0,0 +1,91 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// -- uint8 Value
+type uint8Value uint8
+
+func newUint8Value(val uint8, p *uint8) *uint8Value {
+	*p = val
+	return (*uint8Value)(p)
+}
+
+func (i *uint8Value) Set(s string) error {
+	v, err := strconv.ParseUint(s, 0, 8)
+	*i = uint8Value(v)
+	return err
+}
+
+func (i *uint8Value) Type() string {
+	return "uint8"
+}
+
+func (i *uint8Value) String() string { return fmt.Sprintf("%v", *i) }
+
+func uint8Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 8)
+	if err != nil {
+		return 0, err
+	}
+	return uint8(v), nil
+}
+
+// GetUint8 return the uint8 value of a flag with the given name
+func (f *FlagSet) GetUint8(name string) (uint8, error) {
+	val, err := f.getFlagType(name, "uint8", uint8Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint8), nil
+}
+
+// Uint8Var defines a uint8 flag with specified name, default value, and usage string.
+// The argument p points to a uint8 variable in which to store the value of the flag.
+func (f *FlagSet) Uint8Var(p *uint8, name string, value uint8, usage string) {
+	f.VarP(newUint8Value(value, p), name, "", usage)
+}
+
+// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
+	f.VarP(newUint8Value(value, p), name, shorthand, usage)
+}
+
+// Uint8Var defines a uint8 flag with specified name, default value, and usage string.
+// The argument p points to a uint8 variable in which to store the value of the flag.
+func Uint8Var(p *uint8, name string, value uint8, usage string) {
+	CommandLine.VarP(newUint8Value(value, p), name, "", usage)
+}
+
+// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
+func Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
+	CommandLine.VarP(newUint8Value(value, p), name, shorthand, usage)
+}
+
+// Uint8 defines a uint8 flag with specified name, default value, and usage string.
+// The return value is the address of a uint8 variable that stores the value of the flag.
+func (f *FlagSet) Uint8(name string, value uint8, usage string) *uint8 {
+	p := new(uint8)
+	f.Uint8VarP(p, name, "", value, usage)
+	return p
+}
+
+// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
+	p := new(uint8)
+	f.Uint8VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Uint8 defines a uint8 flag with specified name, default value, and usage string.
+// The return value is the address of a uint8 variable that stores the value of the flag.
+func Uint8(name string, value uint8, usage string) *uint8 {
+	return CommandLine.Uint8P(name, "", value, usage)
+}
+
+// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
+func Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
+	return CommandLine.Uint8P(name, shorthand, value, usage)
+}
diff --git a/vendor/gopkg.in/yaml.v2/LICENSE b/vendor/gopkg.in/yaml.v2/LICENSE
new file mode 100644
index 0000000..a68e67f
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/LICENSE
@@ -0,0 +1,188 @@
+
+Copyright (c) 2011-2014 - Canonical Inc.
+
+This software is licensed under the LGPLv3, included below.
+
+As a special exception to the GNU Lesser General Public License version 3
+("LGPL3"), the copyright holders of this Library give you permission to
+convey to a third party a Combined Work that links statically or dynamically
+to this Library without providing any Minimal Corresponding Source or
+Minimal Application Code as set out in 4d or providing the installation
+information set out in section 4e, provided that you comply with the other
+provisions of LGPL3 and provided that you meet, for the Application the
+terms and conditions of the license(s) which apply to the Application.
+
+Except as stated in this special exception, the provisions of LGPL3 will
+continue to comply in full to this Library. If you modify this Library, you
+may apply this exception to your version of this Library, but you are not
+obliged to do so. If you do not wish to do so, delete this exception
+statement from your version. This exception does not (and cannot) modify any
+license terms which apply to the Application, with which you must still
+comply.
+
+
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/vendor/gopkg.in/yaml.v2/LICENSE.libyaml b/vendor/gopkg.in/yaml.v2/LICENSE.libyaml
new file mode 100644
index 0000000..8da58fb
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/LICENSE.libyaml
@@ -0,0 +1,31 @@
+The following files were ported to Go from C files of libyaml, and thus
+are still covered by their original copyright and license:
+
+    apic.go
+    emitterc.go
+    parserc.go
+    readerc.go
+    scannerc.go
+    writerc.go
+    yamlh.go
+    yamlprivateh.go
+
+Copyright (c) 2006 Kirill Simonov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/gopkg.in/yaml.v2/README.md b/vendor/gopkg.in/yaml.v2/README.md
new file mode 100644
index 0000000..7b8bd86
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/README.md
@@ -0,0 +1,131 @@
+# YAML support for the Go language
+
+Introduction
+------------
+
+The yaml package enables Go programs to comfortably encode and decode YAML
+values. It was developed within [Canonical](https://www.canonical.com) as
+part of the [juju](https://juju.ubuntu.com) project, and is based on a
+pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
+C library to parse and generate YAML data quickly and reliably.
+
+Compatibility
+-------------
+
+The yaml package supports most of YAML 1.1 and 1.2, including support for
+anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
+implemented, and base-60 floats from YAML 1.1 are purposefully not
+supported since they're a poor design and are gone in YAML 1.2.
+
+Installation and usage
+----------------------
+
+The import path for the package is *gopkg.in/yaml.v2*.
+
+To install it, run:
+
+    go get gopkg.in/yaml.v2
+
+API documentation
+-----------------
+
+If opened in a browser, the import path itself leads to the API documentation:
+
+  * [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2)
+
+API stability
+-------------
+
+The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in).
+
+
+License
+-------
+
+The yaml package is licensed under the LGPL with an exception that allows it to be linked statically. Please see the LICENSE file for details.
+
+
+Example
+-------
+
+```Go
+package main
+
+import (
+        "fmt"
+        "log"
+
+        "gopkg.in/yaml.v2"
+)
+
+var data = `
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+`
+
+type T struct {
+        A string
+        B struct {
+                RenamedC int   `yaml:"c"`
+                D        []int `yaml:",flow"`
+        }
+}
+
+func main() {
+        t := T{}
+    
+        err := yaml.Unmarshal([]byte(data), &t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t:\n%v\n\n", t)
+    
+        d, err := yaml.Marshal(&t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t dump:\n%s\n\n", string(d))
+    
+        m := make(map[interface{}]interface{})
+    
+        err = yaml.Unmarshal([]byte(data), &m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m:\n%v\n\n", m)
+    
+        d, err = yaml.Marshal(&m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m dump:\n%s\n\n", string(d))
+}
+```
+
+This example will generate the following output:
+
+```
+--- t:
+{Easy! {2 [3 4]}}
+
+--- t dump:
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+
+
+--- m:
+map[a:Easy! b:map[c:2 d:[3 4]]]
+
+--- m dump:
+a: Easy!
+b:
+  c: 2
+  d:
+  - 3
+  - 4
+```
+
diff --git a/vendor/gopkg.in/yaml.v2/apic.go b/vendor/gopkg.in/yaml.v2/apic.go
new file mode 100644
index 0000000..95ec014
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/apic.go
@@ -0,0 +1,742 @@
+package yaml
+
+import (
+	"io"
+	"os"
+)
+
+func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
+	//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
+
+	// Check if we can move the queue at the beginning of the buffer.
+	if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
+		if parser.tokens_head != len(parser.tokens) {
+			copy(parser.tokens, parser.tokens[parser.tokens_head:])
+		}
+		parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
+		parser.tokens_head = 0
+	}
+	parser.tokens = append(parser.tokens, *token)
+	if pos < 0 {
+		return
+	}
+	copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
+	parser.tokens[parser.tokens_head+pos] = *token
+}
+
+// Create a new parser object.
+func yaml_parser_initialize(parser *yaml_parser_t) bool {
+	*parser = yaml_parser_t{
+		raw_buffer: make([]byte, 0, input_raw_buffer_size),
+		buffer:     make([]byte, 0, input_buffer_size),
+	}
+	return true
+}
+
+// Destroy a parser object.
+func yaml_parser_delete(parser *yaml_parser_t) {
+	*parser = yaml_parser_t{}
+}
+
+// String read handler.
+func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	if parser.input_pos == len(parser.input) {
+		return 0, io.EOF
+	}
+	n = copy(buffer, parser.input[parser.input_pos:])
+	parser.input_pos += n
+	return n, nil
+}
+
+// File read handler.
+func yaml_file_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	return parser.input_file.Read(buffer)
+}
+
+// Set a string input.
+func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_string_read_handler
+	parser.input = input
+	parser.input_pos = 0
+}
+
+// Set a file input.
+func yaml_parser_set_input_file(parser *yaml_parser_t, file *os.File) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_file_read_handler
+	parser.input_file = file
+}
+
+// Set the source encoding.
+func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
+	if parser.encoding != yaml_ANY_ENCODING {
+		panic("must set the encoding only once")
+	}
+	parser.encoding = encoding
+}
+
+// Create a new emitter object.
+func yaml_emitter_initialize(emitter *yaml_emitter_t) bool {
+	*emitter = yaml_emitter_t{
+		buffer:     make([]byte, output_buffer_size),
+		raw_buffer: make([]byte, 0, output_raw_buffer_size),
+		states:     make([]yaml_emitter_state_t, 0, initial_stack_size),
+		events:     make([]yaml_event_t, 0, initial_queue_size),
+	}
+	return true
+}
+
+// Destroy an emitter object.
+func yaml_emitter_delete(emitter *yaml_emitter_t) {
+	*emitter = yaml_emitter_t{}
+}
+
+// String write handler.
+func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
+	return nil
+}
+
+// File write handler.
+func yaml_file_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	_, err := emitter.output_file.Write(buffer)
+	return err
+}
+
+// Set a string output.
+func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_string_write_handler
+	emitter.output_buffer = output_buffer
+}
+
+// Set a file output.
+func yaml_emitter_set_output_file(emitter *yaml_emitter_t, file io.Writer) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_file_write_handler
+	emitter.output_file = file
+}
+
+// Set the output encoding.
+func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
+	if emitter.encoding != yaml_ANY_ENCODING {
+		panic("must set the output encoding only once")
+	}
+	emitter.encoding = encoding
+}
+
+// Set the canonical output style.
+func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
+	emitter.canonical = canonical
+}
+
+//// Set the indentation increment.
+func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
+	if indent < 2 || indent > 9 {
+		indent = 2
+	}
+	emitter.best_indent = indent
+}
+
+// Set the preferred line width.
+func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
+	if width < 0 {
+		width = -1
+	}
+	emitter.best_width = width
+}
+
+// Set if unescaped non-ASCII characters are allowed.
+func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
+	emitter.unicode = unicode
+}
+
+// Set the preferred line break character.
+func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
+	emitter.line_break = line_break
+}
+
+///*
+// * Destroy a token object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_token_delete(yaml_token_t *token)
+//{
+//    assert(token);  // Non-NULL token object expected.
+//
+//    switch (token.type)
+//    {
+//        case YAML_TAG_DIRECTIVE_TOKEN:
+//            yaml_free(token.data.tag_directive.handle);
+//            yaml_free(token.data.tag_directive.prefix);
+//            break;
+//
+//        case YAML_ALIAS_TOKEN:
+//            yaml_free(token.data.alias.value);
+//            break;
+//
+//        case YAML_ANCHOR_TOKEN:
+//            yaml_free(token.data.anchor.value);
+//            break;
+//
+//        case YAML_TAG_TOKEN:
+//            yaml_free(token.data.tag.handle);
+//            yaml_free(token.data.tag.suffix);
+//            break;
+//
+//        case YAML_SCALAR_TOKEN:
+//            yaml_free(token.data.scalar.value);
+//            break;
+//
+//        default:
+//            break;
+//    }
+//
+//    memset(token, 0, sizeof(yaml_token_t));
+//}
+//
+///*
+// * Check if a string is a valid UTF-8 sequence.
+// *
+// * Check 'reader.c' for more details on UTF-8 encoding.
+// */
+//
+//static int
+//yaml_check_utf8(yaml_char_t *start, size_t length)
+//{
+//    yaml_char_t *end = start+length;
+//    yaml_char_t *pointer = start;
+//
+//    while (pointer < end) {
+//        unsigned char octet;
+//        unsigned int width;
+//        unsigned int value;
+//        size_t k;
+//
+//        octet = pointer[0];
+//        width = (octet & 0x80) == 0x00 ? 1 :
+//                (octet & 0xE0) == 0xC0 ? 2 :
+//                (octet & 0xF0) == 0xE0 ? 3 :
+//                (octet & 0xF8) == 0xF0 ? 4 : 0;
+//        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+//                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+//                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+//                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+//        if (!width) return 0;
+//        if (pointer+width > end) return 0;
+//        for (k = 1; k < width; k ++) {
+//            octet = pointer[k];
+//            if ((octet & 0xC0) != 0x80) return 0;
+//            value = (value << 6) + (octet & 0x3F);
+//        }
+//        if (!((width == 1) ||
+//            (width == 2 && value >= 0x80) ||
+//            (width == 3 && value >= 0x800) ||
+//            (width == 4 && value >= 0x10000))) return 0;
+//
+//        pointer += width;
+//    }
+//
+//    return 1;
+//}
+//
+
+// Create STREAM-START.
+func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_STREAM_START_EVENT,
+		encoding: encoding,
+	}
+	return true
+}
+
+// Create STREAM-END.
+func yaml_stream_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_STREAM_END_EVENT,
+	}
+	return true
+}
+
+// Create DOCUMENT-START.
+func yaml_document_start_event_initialize(event *yaml_event_t, version_directive *yaml_version_directive_t,
+	tag_directives []yaml_tag_directive_t, implicit bool) bool {
+	*event = yaml_event_t{
+		typ:               yaml_DOCUMENT_START_EVENT,
+		version_directive: version_directive,
+		tag_directives:    tag_directives,
+		implicit:          implicit,
+	}
+	return true
+}
+
+// Create DOCUMENT-END.
+func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) bool {
+	*event = yaml_event_t{
+		typ:      yaml_DOCUMENT_END_EVENT,
+		implicit: implicit,
+	}
+	return true
+}
+
+///*
+// * Create ALIAS.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
+//{
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    anchor_copy *yaml_char_t = NULL
+//
+//    assert(event) // Non-NULL event object is expected.
+//    assert(anchor) // Non-NULL anchor is expected.
+//
+//    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
+//
+//    anchor_copy = yaml_strdup(anchor)
+//    if (!anchor_copy)
+//        return 0
+//
+//    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
+//
+//    return 1
+//}
+
+// Create SCALAR.
+func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
+	*event = yaml_event_t{
+		typ:             yaml_SCALAR_EVENT,
+		anchor:          anchor,
+		tag:             tag,
+		value:           value,
+		implicit:        plain_implicit,
+		quoted_implicit: quoted_implicit,
+		style:           yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-START.
+func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_SEQUENCE_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-END.
+func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_SEQUENCE_END_EVENT,
+	}
+	return true
+}
+
+// Create MAPPING-START.
+func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_MAPPING_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create MAPPING-END.
+func yaml_mapping_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_MAPPING_END_EVENT,
+	}
+	return true
+}
+
+// Destroy an event object.
+func yaml_event_delete(event *yaml_event_t) {
+	*event = yaml_event_t{}
+}
+
+///*
+// * Create a document object.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_initialize(document *yaml_document_t,
+//        version_directive *yaml_version_directive_t,
+//        tag_directives_start *yaml_tag_directive_t,
+//        tag_directives_end *yaml_tag_directive_t,
+//        start_implicit int, end_implicit int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    struct {
+//        start *yaml_node_t
+//        end *yaml_node_t
+//        top *yaml_node_t
+//    } nodes = { NULL, NULL, NULL }
+//    version_directive_copy *yaml_version_directive_t = NULL
+//    struct {
+//        start *yaml_tag_directive_t
+//        end *yaml_tag_directive_t
+//        top *yaml_tag_directive_t
+//    } tag_directives_copy = { NULL, NULL, NULL }
+//    value yaml_tag_directive_t = { NULL, NULL }
+//    mark yaml_mark_t = { 0, 0, 0 }
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert((tag_directives_start && tag_directives_end) ||
+//            (tag_directives_start == tag_directives_end))
+//                            // Valid tag directives are expected.
+//
+//    if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
+//
+//    if (version_directive) {
+//        version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
+//        if (!version_directive_copy) goto error
+//        version_directive_copy.major = version_directive.major
+//        version_directive_copy.minor = version_directive.minor
+//    }
+//
+//    if (tag_directives_start != tag_directives_end) {
+//        tag_directive *yaml_tag_directive_t
+//        if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
+//            goto error
+//        for (tag_directive = tag_directives_start
+//                tag_directive != tag_directives_end; tag_directive ++) {
+//            assert(tag_directive.handle)
+//            assert(tag_directive.prefix)
+//            if (!yaml_check_utf8(tag_directive.handle,
+//                        strlen((char *)tag_directive.handle)))
+//                goto error
+//            if (!yaml_check_utf8(tag_directive.prefix,
+//                        strlen((char *)tag_directive.prefix)))
+//                goto error
+//            value.handle = yaml_strdup(tag_directive.handle)
+//            value.prefix = yaml_strdup(tag_directive.prefix)
+//            if (!value.handle || !value.prefix) goto error
+//            if (!PUSH(&context, tag_directives_copy, value))
+//                goto error
+//            value.handle = NULL
+//            value.prefix = NULL
+//        }
+//    }
+//
+//    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
+//            tag_directives_copy.start, tag_directives_copy.top,
+//            start_implicit, end_implicit, mark, mark)
+//
+//    return 1
+//
+//error:
+//    STACK_DEL(&context, nodes)
+//    yaml_free(version_directive_copy)
+//    while (!STACK_EMPTY(&context, tag_directives_copy)) {
+//        value yaml_tag_directive_t = POP(&context, tag_directives_copy)
+//        yaml_free(value.handle)
+//        yaml_free(value.prefix)
+//    }
+//    STACK_DEL(&context, tag_directives_copy)
+//    yaml_free(value.handle)
+//    yaml_free(value.prefix)
+//
+//    return 0
+//}
+//
+///*
+// * Destroy a document object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_document_delete(document *yaml_document_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    tag_directive *yaml_tag_directive_t
+//
+//    context.error = YAML_NO_ERROR // Eliminate a compliler warning.
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    while (!STACK_EMPTY(&context, document.nodes)) {
+//        node yaml_node_t = POP(&context, document.nodes)
+//        yaml_free(node.tag)
+//        switch (node.type) {
+//            case YAML_SCALAR_NODE:
+//                yaml_free(node.data.scalar.value)
+//                break
+//            case YAML_SEQUENCE_NODE:
+//                STACK_DEL(&context, node.data.sequence.items)
+//                break
+//            case YAML_MAPPING_NODE:
+//                STACK_DEL(&context, node.data.mapping.pairs)
+//                break
+//            default:
+//                assert(0) // Should not happen.
+//        }
+//    }
+//    STACK_DEL(&context, document.nodes)
+//
+//    yaml_free(document.version_directive)
+//    for (tag_directive = document.tag_directives.start
+//            tag_directive != document.tag_directives.end
+//            tag_directive++) {
+//        yaml_free(tag_directive.handle)
+//        yaml_free(tag_directive.prefix)
+//    }
+//    yaml_free(document.tag_directives.start)
+//
+//    memset(document, 0, sizeof(yaml_document_t))
+//}
+//
+///**
+// * Get a document node.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_node(document *yaml_document_t, index int)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (index > 0 && document.nodes.start + index <= document.nodes.top) {
+//        return document.nodes.start + index - 1
+//    }
+//    return NULL
+//}
+//
+///**
+// * Get the root object.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_root_node(document *yaml_document_t)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (document.nodes.top != document.nodes.start) {
+//        return document.nodes.start
+//    }
+//    return NULL
+//}
+//
+///*
+// * Add a scalar node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_scalar(document *yaml_document_t,
+//        tag *yaml_char_t, value *yaml_char_t, length int,
+//        style yaml_scalar_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    value_copy *yaml_char_t = NULL
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert(value) // Non-NULL value is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (length < 0) {
+//        length = strlen((char *)value)
+//    }
+//
+//    if (!yaml_check_utf8(value, length)) goto error
+//    value_copy = yaml_malloc(length+1)
+//    if (!value_copy) goto error
+//    memcpy(value_copy, value, length)
+//    value_copy[length] = '\0'
+//
+//    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    yaml_free(tag_copy)
+//    yaml_free(value_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a sequence node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_sequence(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_sequence_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_item_t
+//        end *yaml_node_item_t
+//        top *yaml_node_item_t
+//    } items = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
+//
+//    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, items)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a mapping node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_mapping(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_mapping_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_pair_t
+//        end *yaml_node_pair_t
+//        top *yaml_node_pair_t
+//    } pairs = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
+//
+//    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, pairs)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Append an item to a sequence node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_sequence_item(document *yaml_document_t,
+//        sequence int, item int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(sequence > 0
+//            && document.nodes.start + sequence <= document.nodes.top)
+//                            // Valid sequence id is required.
+//    assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
+//                            // A sequence node is required.
+//    assert(item > 0 && document.nodes.start + item <= document.nodes.top)
+//                            // Valid item id is required.
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[sequence-1].data.sequence.items, item))
+//        return 0
+//
+//    return 1
+//}
+//
+///*
+// * Append a pair of a key and a value to a mapping node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_mapping_pair(document *yaml_document_t,
+//        mapping int, key int, value int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    pair yaml_node_pair_t
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(mapping > 0
+//            && document.nodes.start + mapping <= document.nodes.top)
+//                            // Valid mapping id is required.
+//    assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
+//                            // A mapping node is required.
+//    assert(key > 0 && document.nodes.start + key <= document.nodes.top)
+//                            // Valid key id is required.
+//    assert(value > 0 && document.nodes.start + value <= document.nodes.top)
+//                            // Valid value id is required.
+//
+//    pair.key = key
+//    pair.value = value
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[mapping-1].data.mapping.pairs, pair))
+//        return 0
+//
+//    return 1
+//}
+//
+//
diff --git a/vendor/gopkg.in/yaml.v2/decode.go b/vendor/gopkg.in/yaml.v2/decode.go
new file mode 100644
index 0000000..085cddc
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/decode.go
@@ -0,0 +1,683 @@
+package yaml
+
+import (
+	"encoding"
+	"encoding/base64"
+	"fmt"
+	"math"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+const (
+	documentNode = 1 << iota
+	mappingNode
+	sequenceNode
+	scalarNode
+	aliasNode
+)
+
+type node struct {
+	kind         int
+	line, column int
+	tag          string
+	value        string
+	implicit     bool
+	children     []*node
+	anchors      map[string]*node
+}
+
+// ----------------------------------------------------------------------------
+// Parser, produces a node tree out of a libyaml event stream.
+
+type parser struct {
+	parser yaml_parser_t
+	event  yaml_event_t
+	doc    *node
+}
+
+func newParser(b []byte) *parser {
+	p := parser{}
+	if !yaml_parser_initialize(&p.parser) {
+		panic("failed to initialize YAML emitter")
+	}
+
+	if len(b) == 0 {
+		b = []byte{'\n'}
+	}
+
+	yaml_parser_set_input_string(&p.parser, b)
+
+	p.skip()
+	if p.event.typ != yaml_STREAM_START_EVENT {
+		panic("expected stream start event, got " + strconv.Itoa(int(p.event.typ)))
+	}
+	p.skip()
+	return &p
+}
+
+func (p *parser) destroy() {
+	if p.event.typ != yaml_NO_EVENT {
+		yaml_event_delete(&p.event)
+	}
+	yaml_parser_delete(&p.parser)
+}
+
+func (p *parser) skip() {
+	if p.event.typ != yaml_NO_EVENT {
+		if p.event.typ == yaml_STREAM_END_EVENT {
+			failf("attempted to go past the end of stream; corrupted value?")
+		}
+		yaml_event_delete(&p.event)
+	}
+	if !yaml_parser_parse(&p.parser, &p.event) {
+		p.fail()
+	}
+}
+
+func (p *parser) fail() {
+	var where string
+	var line int
+	if p.parser.problem_mark.line != 0 {
+		line = p.parser.problem_mark.line
+	} else if p.parser.context_mark.line != 0 {
+		line = p.parser.context_mark.line
+	}
+	if line != 0 {
+		where = "line " + strconv.Itoa(line) + ": "
+	}
+	var msg string
+	if len(p.parser.problem) > 0 {
+		msg = p.parser.problem
+	} else {
+		msg = "unknown problem parsing YAML content"
+	}
+	failf("%s%s", where, msg)
+}
+
+func (p *parser) anchor(n *node, anchor []byte) {
+	if anchor != nil {
+		p.doc.anchors[string(anchor)] = n
+	}
+}
+
+func (p *parser) parse() *node {
+	switch p.event.typ {
+	case yaml_SCALAR_EVENT:
+		return p.scalar()
+	case yaml_ALIAS_EVENT:
+		return p.alias()
+	case yaml_MAPPING_START_EVENT:
+		return p.mapping()
+	case yaml_SEQUENCE_START_EVENT:
+		return p.sequence()
+	case yaml_DOCUMENT_START_EVENT:
+		return p.document()
+	case yaml_STREAM_END_EVENT:
+		// Happens when attempting to decode an empty buffer.
+		return nil
+	default:
+		panic("attempted to parse unknown event: " + strconv.Itoa(int(p.event.typ)))
+	}
+	panic("unreachable")
+}
+
+func (p *parser) node(kind int) *node {
+	return &node{
+		kind:   kind,
+		line:   p.event.start_mark.line,
+		column: p.event.start_mark.column,
+	}
+}
+
+func (p *parser) document() *node {
+	n := p.node(documentNode)
+	n.anchors = make(map[string]*node)
+	p.doc = n
+	p.skip()
+	n.children = append(n.children, p.parse())
+	if p.event.typ != yaml_DOCUMENT_END_EVENT {
+		panic("expected end of document event but got " + strconv.Itoa(int(p.event.typ)))
+	}
+	p.skip()
+	return n
+}
+
+func (p *parser) alias() *node {
+	n := p.node(aliasNode)
+	n.value = string(p.event.anchor)
+	p.skip()
+	return n
+}
+
+func (p *parser) scalar() *node {
+	n := p.node(scalarNode)
+	n.value = string(p.event.value)
+	n.tag = string(p.event.tag)
+	n.implicit = p.event.implicit
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	return n
+}
+
+func (p *parser) sequence() *node {
+	n := p.node(sequenceNode)
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	for p.event.typ != yaml_SEQUENCE_END_EVENT {
+		n.children = append(n.children, p.parse())
+	}
+	p.skip()
+	return n
+}
+
+func (p *parser) mapping() *node {
+	n := p.node(mappingNode)
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	for p.event.typ != yaml_MAPPING_END_EVENT {
+		n.children = append(n.children, p.parse(), p.parse())
+	}
+	p.skip()
+	return n
+}
+
+// ----------------------------------------------------------------------------
+// Decoder, unmarshals a node into a provided value.
+
+type decoder struct {
+	doc     *node
+	aliases map[string]bool
+	mapType reflect.Type
+	terrors []string
+}
+
+var (
+	mapItemType    = reflect.TypeOf(MapItem{})
+	durationType   = reflect.TypeOf(time.Duration(0))
+	defaultMapType = reflect.TypeOf(map[interface{}]interface{}{})
+	ifaceType      = defaultMapType.Elem()
+)
+
+func newDecoder() *decoder {
+	d := &decoder{mapType: defaultMapType}
+	d.aliases = make(map[string]bool)
+	return d
+}
+
+func (d *decoder) terror(n *node, tag string, out reflect.Value) {
+	if n.tag != "" {
+		tag = n.tag
+	}
+	value := n.value
+	if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG {
+		if len(value) > 10 {
+			value = " `" + value[:7] + "...`"
+		} else {
+			value = " `" + value + "`"
+		}
+	}
+	d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type()))
+}
+
+func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) {
+	terrlen := len(d.terrors)
+	err := u.UnmarshalYAML(func(v interface{}) (err error) {
+		defer handleErr(&err)
+		d.unmarshal(n, reflect.ValueOf(v))
+		if len(d.terrors) > terrlen {
+			issues := d.terrors[terrlen:]
+			d.terrors = d.terrors[:terrlen]
+			return &TypeError{issues}
+		}
+		return nil
+	})
+	if e, ok := err.(*TypeError); ok {
+		d.terrors = append(d.terrors, e.Errors...)
+		return false
+	}
+	if err != nil {
+		fail(err)
+	}
+	return true
+}
+
+// d.prepare initializes and dereferences pointers and calls UnmarshalYAML
+// if a value is found to implement it.
+// It returns the initialized and dereferenced out value, whether
+// unmarshalling was already done by UnmarshalYAML, and if so whether
+// its types unmarshalled appropriately.
+//
+// If n holds a null value, prepare returns before doing anything.
+func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) {
+	if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "") {
+		return out, false, false
+	}
+	again := true
+	for again {
+		again = false
+		if out.Kind() == reflect.Ptr {
+			if out.IsNil() {
+				out.Set(reflect.New(out.Type().Elem()))
+			}
+			out = out.Elem()
+			again = true
+		}
+		if out.CanAddr() {
+			if u, ok := out.Addr().Interface().(Unmarshaler); ok {
+				good = d.callUnmarshaler(n, u)
+				return out, true, good
+			}
+		}
+	}
+	return out, false, false
+}
+
+func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
+	switch n.kind {
+	case documentNode:
+		return d.document(n, out)
+	case aliasNode:
+		return d.alias(n, out)
+	}
+	out, unmarshaled, good := d.prepare(n, out)
+	if unmarshaled {
+		return good
+	}
+	switch n.kind {
+	case scalarNode:
+		good = d.scalar(n, out)
+	case mappingNode:
+		good = d.mapping(n, out)
+	case sequenceNode:
+		good = d.sequence(n, out)
+	default:
+		panic("internal error: unknown node kind: " + strconv.Itoa(n.kind))
+	}
+	return good
+}
+
+func (d *decoder) document(n *node, out reflect.Value) (good bool) {
+	if len(n.children) == 1 {
+		d.doc = n
+		d.unmarshal(n.children[0], out)
+		return true
+	}
+	return false
+}
+
+func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
+	an, ok := d.doc.anchors[n.value]
+	if !ok {
+		failf("unknown anchor '%s' referenced", n.value)
+	}
+	if d.aliases[n.value] {
+		failf("anchor '%s' value contains itself", n.value)
+	}
+	d.aliases[n.value] = true
+	good = d.unmarshal(an, out)
+	delete(d.aliases, n.value)
+	return good
+}
+
+var zeroValue reflect.Value
+
+func resetMap(out reflect.Value) {
+	for _, k := range out.MapKeys() {
+		out.SetMapIndex(k, zeroValue)
+	}
+}
+
+func (d *decoder) scalar(n *node, out reflect.Value) (good bool) {
+	var tag string
+	var resolved interface{}
+	if n.tag == "" && !n.implicit {
+		tag = yaml_STR_TAG
+		resolved = n.value
+	} else {
+		tag, resolved = resolve(n.tag, n.value)
+		if tag == yaml_BINARY_TAG {
+			data, err := base64.StdEncoding.DecodeString(resolved.(string))
+			if err != nil {
+				failf("!!binary value contains invalid base64 data")
+			}
+			resolved = string(data)
+		}
+	}
+	if resolved == nil {
+		if out.Kind() == reflect.Map && !out.CanAddr() {
+			resetMap(out)
+		} else {
+			out.Set(reflect.Zero(out.Type()))
+		}
+		return true
+	}
+	if s, ok := resolved.(string); ok && out.CanAddr() {
+		if u, ok := out.Addr().Interface().(encoding.TextUnmarshaler); ok {
+			err := u.UnmarshalText([]byte(s))
+			if err != nil {
+				fail(err)
+			}
+			return true
+		}
+	}
+	switch out.Kind() {
+	case reflect.String:
+		if tag == yaml_BINARY_TAG {
+			out.SetString(resolved.(string))
+			good = true
+		} else if resolved != nil {
+			out.SetString(n.value)
+			good = true
+		}
+	case reflect.Interface:
+		if resolved == nil {
+			out.Set(reflect.Zero(out.Type()))
+		} else {
+			out.Set(reflect.ValueOf(resolved))
+		}
+		good = true
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		switch resolved := resolved.(type) {
+		case int:
+			if !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case int64:
+			if !out.OverflowInt(resolved) {
+				out.SetInt(resolved)
+				good = true
+			}
+		case uint64:
+			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case float64:
+			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case string:
+			if out.Type() == durationType {
+				d, err := time.ParseDuration(resolved)
+				if err == nil {
+					out.SetInt(int64(d))
+					good = true
+				}
+			}
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		switch resolved := resolved.(type) {
+		case int:
+			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case int64:
+			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case uint64:
+			if !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case float64:
+			if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		}
+	case reflect.Bool:
+		switch resolved := resolved.(type) {
+		case bool:
+			out.SetBool(resolved)
+			good = true
+		}
+	case reflect.Float32, reflect.Float64:
+		switch resolved := resolved.(type) {
+		case int:
+			out.SetFloat(float64(resolved))
+			good = true
+		case int64:
+			out.SetFloat(float64(resolved))
+			good = true
+		case uint64:
+			out.SetFloat(float64(resolved))
+			good = true
+		case float64:
+			out.SetFloat(resolved)
+			good = true
+		}
+	case reflect.Ptr:
+		if out.Type().Elem() == reflect.TypeOf(resolved) {
+			// TODO DOes this make sense? When is out a Ptr except when decoding a nil value?
+			elem := reflect.New(out.Type().Elem())
+			elem.Elem().Set(reflect.ValueOf(resolved))
+			out.Set(elem)
+			good = true
+		}
+	}
+	if !good {
+		d.terror(n, tag, out)
+	}
+	return good
+}
+
+func settableValueOf(i interface{}) reflect.Value {
+	v := reflect.ValueOf(i)
+	sv := reflect.New(v.Type()).Elem()
+	sv.Set(v)
+	return sv
+}
+
+func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
+	l := len(n.children)
+
+	var iface reflect.Value
+	switch out.Kind() {
+	case reflect.Slice:
+		out.Set(reflect.MakeSlice(out.Type(), l, l))
+	case reflect.Interface:
+		// No type hints. Will have to use a generic sequence.
+		iface = out
+		out = settableValueOf(make([]interface{}, l))
+	default:
+		d.terror(n, yaml_SEQ_TAG, out)
+		return false
+	}
+	et := out.Type().Elem()
+
+	j := 0
+	for i := 0; i < l; i++ {
+		e := reflect.New(et).Elem()
+		if ok := d.unmarshal(n.children[i], e); ok {
+			out.Index(j).Set(e)
+			j++
+		}
+	}
+	out.Set(out.Slice(0, j))
+	if iface.IsValid() {
+		iface.Set(out)
+	}
+	return true
+}
+
+func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
+	switch out.Kind() {
+	case reflect.Struct:
+		return d.mappingStruct(n, out)
+	case reflect.Slice:
+		return d.mappingSlice(n, out)
+	case reflect.Map:
+		// okay
+	case reflect.Interface:
+		if d.mapType.Kind() == reflect.Map {
+			iface := out
+			out = reflect.MakeMap(d.mapType)
+			iface.Set(out)
+		} else {
+			slicev := reflect.New(d.mapType).Elem()
+			if !d.mappingSlice(n, slicev) {
+				return false
+			}
+			out.Set(slicev)
+			return true
+		}
+	default:
+		d.terror(n, yaml_MAP_TAG, out)
+		return false
+	}
+	outt := out.Type()
+	kt := outt.Key()
+	et := outt.Elem()
+
+	mapType := d.mapType
+	if outt.Key() == ifaceType && outt.Elem() == ifaceType {
+		d.mapType = outt
+	}
+
+	if out.IsNil() {
+		out.Set(reflect.MakeMap(outt))
+	}
+	l := len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		k := reflect.New(kt).Elem()
+		if d.unmarshal(n.children[i], k) {
+			kkind := k.Kind()
+			if kkind == reflect.Interface {
+				kkind = k.Elem().Kind()
+			}
+			if kkind == reflect.Map || kkind == reflect.Slice {
+				failf("invalid map key: %#v", k.Interface())
+			}
+			e := reflect.New(et).Elem()
+			if d.unmarshal(n.children[i+1], e) {
+				out.SetMapIndex(k, e)
+			}
+		}
+	}
+	d.mapType = mapType
+	return true
+}
+
+func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) {
+	outt := out.Type()
+	if outt.Elem() != mapItemType {
+		d.terror(n, yaml_MAP_TAG, out)
+		return false
+	}
+
+	mapType := d.mapType
+	d.mapType = outt
+
+	var slice []MapItem
+	var l = len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		item := MapItem{}
+		k := reflect.ValueOf(&item.Key).Elem()
+		if d.unmarshal(n.children[i], k) {
+			v := reflect.ValueOf(&item.Value).Elem()
+			if d.unmarshal(n.children[i+1], v) {
+				slice = append(slice, item)
+			}
+		}
+	}
+	out.Set(reflect.ValueOf(slice))
+	d.mapType = mapType
+	return true
+}
+
+func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
+	sinfo, err := getStructInfo(out.Type())
+	if err != nil {
+		panic(err)
+	}
+	name := settableValueOf("")
+	l := len(n.children)
+
+	var inlineMap reflect.Value
+	var elemType reflect.Type
+	if sinfo.InlineMap != -1 {
+		inlineMap = out.Field(sinfo.InlineMap)
+		inlineMap.Set(reflect.New(inlineMap.Type()).Elem())
+		elemType = inlineMap.Type().Elem()
+	}
+
+	for i := 0; i < l; i += 2 {
+		ni := n.children[i]
+		if isMerge(ni) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		if !d.unmarshal(ni, name) {
+			continue
+		}
+		if info, ok := sinfo.FieldsMap[name.String()]; ok {
+			var field reflect.Value
+			if info.Inline == nil {
+				field = out.Field(info.Num)
+			} else {
+				field = out.FieldByIndex(info.Inline)
+			}
+			d.unmarshal(n.children[i+1], field)
+		} else if sinfo.InlineMap != -1 {
+			if inlineMap.IsNil() {
+				inlineMap.Set(reflect.MakeMap(inlineMap.Type()))
+			}
+			value := reflect.New(elemType).Elem()
+			d.unmarshal(n.children[i+1], value)
+			inlineMap.SetMapIndex(name, value)
+		}
+	}
+	return true
+}
+
+func failWantMap() {
+	failf("map merge requires map or sequence of maps as the value")
+}
+
+func (d *decoder) merge(n *node, out reflect.Value) {
+	switch n.kind {
+	case mappingNode:
+		d.unmarshal(n, out)
+	case aliasNode:
+		an, ok := d.doc.anchors[n.value]
+		if ok && an.kind != mappingNode {
+			failWantMap()
+		}
+		d.unmarshal(n, out)
+	case sequenceNode:
+		// Step backwards as earlier nodes take precedence.
+		for i := len(n.children) - 1; i >= 0; i-- {
+			ni := n.children[i]
+			if ni.kind == aliasNode {
+				an, ok := d.doc.anchors[ni.value]
+				if ok && an.kind != mappingNode {
+					failWantMap()
+				}
+			} else if ni.kind != mappingNode {
+				failWantMap()
+			}
+			d.unmarshal(ni, out)
+		}
+	default:
+		failWantMap()
+	}
+}
+
+func isMerge(n *node) bool {
+	return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
+}
diff --git a/vendor/gopkg.in/yaml.v2/emitterc.go b/vendor/gopkg.in/yaml.v2/emitterc.go
new file mode 100644
index 0000000..2befd55
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/emitterc.go
@@ -0,0 +1,1685 @@
+package yaml
+
+import (
+	"bytes"
+)
+
+// Flush the buffer if needed.
+func flush(emitter *yaml_emitter_t) bool {
+	if emitter.buffer_pos+5 >= len(emitter.buffer) {
+		return yaml_emitter_flush(emitter)
+	}
+	return true
+}
+
+// Put a character to the output buffer.
+func put(emitter *yaml_emitter_t, value byte) bool {
+	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+		return false
+	}
+	emitter.buffer[emitter.buffer_pos] = value
+	emitter.buffer_pos++
+	emitter.column++
+	return true
+}
+
+// Put a line break to the output buffer.
+func put_break(emitter *yaml_emitter_t) bool {
+	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+		return false
+	}
+	switch emitter.line_break {
+	case yaml_CR_BREAK:
+		emitter.buffer[emitter.buffer_pos] = '\r'
+		emitter.buffer_pos += 1
+	case yaml_LN_BREAK:
+		emitter.buffer[emitter.buffer_pos] = '\n'
+		emitter.buffer_pos += 1
+	case yaml_CRLN_BREAK:
+		emitter.buffer[emitter.buffer_pos+0] = '\r'
+		emitter.buffer[emitter.buffer_pos+1] = '\n'
+		emitter.buffer_pos += 2
+	default:
+		panic("unknown line break setting")
+	}
+	emitter.column = 0
+	emitter.line++
+	return true
+}
+
+// Copy a character from a string into buffer.
+func write(emitter *yaml_emitter_t, s []byte, i *int) bool {
+	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+		return false
+	}
+	p := emitter.buffer_pos
+	w := width(s[*i])
+	switch w {
+	case 4:
+		emitter.buffer[p+3] = s[*i+3]
+		fallthrough
+	case 3:
+		emitter.buffer[p+2] = s[*i+2]
+		fallthrough
+	case 2:
+		emitter.buffer[p+1] = s[*i+1]
+		fallthrough
+	case 1:
+		emitter.buffer[p+0] = s[*i+0]
+	default:
+		panic("unknown character width")
+	}
+	emitter.column++
+	emitter.buffer_pos += w
+	*i += w
+	return true
+}
+
+// Write a whole string into buffer.
+func write_all(emitter *yaml_emitter_t, s []byte) bool {
+	for i := 0; i < len(s); {
+		if !write(emitter, s, &i) {
+			return false
+		}
+	}
+	return true
+}
+
+// Copy a line break character from a string into buffer.
+func write_break(emitter *yaml_emitter_t, s []byte, i *int) bool {
+	if s[*i] == '\n' {
+		if !put_break(emitter) {
+			return false
+		}
+		*i++
+	} else {
+		if !write(emitter, s, i) {
+			return false
+		}
+		emitter.column = 0
+		emitter.line++
+	}
+	return true
+}
+
+// Set an emitter error and return false.
+func yaml_emitter_set_emitter_error(emitter *yaml_emitter_t, problem string) bool {
+	emitter.error = yaml_EMITTER_ERROR
+	emitter.problem = problem
+	return false
+}
+
+// Emit an event.
+func yaml_emitter_emit(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	emitter.events = append(emitter.events, *event)
+	for !yaml_emitter_need_more_events(emitter) {
+		event := &emitter.events[emitter.events_head]
+		if !yaml_emitter_analyze_event(emitter, event) {
+			return false
+		}
+		if !yaml_emitter_state_machine(emitter, event) {
+			return false
+		}
+		yaml_event_delete(event)
+		emitter.events_head++
+	}
+	return true
+}
+
+// Check if we need to accumulate more events before emitting.
+//
+// We accumulate extra
+//  - 1 event for DOCUMENT-START
+//  - 2 events for SEQUENCE-START
+//  - 3 events for MAPPING-START
+//
+func yaml_emitter_need_more_events(emitter *yaml_emitter_t) bool {
+	if emitter.events_head == len(emitter.events) {
+		return true
+	}
+	var accumulate int
+	switch emitter.events[emitter.events_head].typ {
+	case yaml_DOCUMENT_START_EVENT:
+		accumulate = 1
+		break
+	case yaml_SEQUENCE_START_EVENT:
+		accumulate = 2
+		break
+	case yaml_MAPPING_START_EVENT:
+		accumulate = 3
+		break
+	default:
+		return false
+	}
+	if len(emitter.events)-emitter.events_head > accumulate {
+		return false
+	}
+	var level int
+	for i := emitter.events_head; i < len(emitter.events); i++ {
+		switch emitter.events[i].typ {
+		case yaml_STREAM_START_EVENT, yaml_DOCUMENT_START_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT:
+			level++
+		case yaml_STREAM_END_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_END_EVENT, yaml_MAPPING_END_EVENT:
+			level--
+		}
+		if level == 0 {
+			return false
+		}
+	}
+	return true
+}
+
+// Append a directive to the directives stack.
+func yaml_emitter_append_tag_directive(emitter *yaml_emitter_t, value *yaml_tag_directive_t, allow_duplicates bool) bool {
+	for i := 0; i < len(emitter.tag_directives); i++ {
+		if bytes.Equal(value.handle, emitter.tag_directives[i].handle) {
+			if allow_duplicates {
+				return true
+			}
+			return yaml_emitter_set_emitter_error(emitter, "duplicate %TAG directive")
+		}
+	}
+
+	// [Go] Do we actually need to copy this given garbage collection
+	// and the lack of deallocating destructors?
+	tag_copy := yaml_tag_directive_t{
+		handle: make([]byte, len(value.handle)),
+		prefix: make([]byte, len(value.prefix)),
+	}
+	copy(tag_copy.handle, value.handle)
+	copy(tag_copy.prefix, value.prefix)
+	emitter.tag_directives = append(emitter.tag_directives, tag_copy)
+	return true
+}
+
+// Increase the indentation level.
+func yaml_emitter_increase_indent(emitter *yaml_emitter_t, flow, indentless bool) bool {
+	emitter.indents = append(emitter.indents, emitter.indent)
+	if emitter.indent < 0 {
+		if flow {
+			emitter.indent = emitter.best_indent
+		} else {
+			emitter.indent = 0
+		}
+	} else if !indentless {
+		emitter.indent += emitter.best_indent
+	}
+	return true
+}
+
+// State dispatcher.
+func yaml_emitter_state_machine(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	switch emitter.state {
+	default:
+	case yaml_EMIT_STREAM_START_STATE:
+		return yaml_emitter_emit_stream_start(emitter, event)
+
+	case yaml_EMIT_FIRST_DOCUMENT_START_STATE:
+		return yaml_emitter_emit_document_start(emitter, event, true)
+
+	case yaml_EMIT_DOCUMENT_START_STATE:
+		return yaml_emitter_emit_document_start(emitter, event, false)
+
+	case yaml_EMIT_DOCUMENT_CONTENT_STATE:
+		return yaml_emitter_emit_document_content(emitter, event)
+
+	case yaml_EMIT_DOCUMENT_END_STATE:
+		return yaml_emitter_emit_document_end(emitter, event)
+
+	case yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE:
+		return yaml_emitter_emit_flow_sequence_item(emitter, event, true)
+
+	case yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE:
+		return yaml_emitter_emit_flow_sequence_item(emitter, event, false)
+
+	case yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE:
+		return yaml_emitter_emit_flow_mapping_key(emitter, event, true)
+
+	case yaml_EMIT_FLOW_MAPPING_KEY_STATE:
+		return yaml_emitter_emit_flow_mapping_key(emitter, event, false)
+
+	case yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE:
+		return yaml_emitter_emit_flow_mapping_value(emitter, event, true)
+
+	case yaml_EMIT_FLOW_MAPPING_VALUE_STATE:
+		return yaml_emitter_emit_flow_mapping_value(emitter, event, false)
+
+	case yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE:
+		return yaml_emitter_emit_block_sequence_item(emitter, event, true)
+
+	case yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE:
+		return yaml_emitter_emit_block_sequence_item(emitter, event, false)
+
+	case yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return yaml_emitter_emit_block_mapping_key(emitter, event, true)
+
+	case yaml_EMIT_BLOCK_MAPPING_KEY_STATE:
+		return yaml_emitter_emit_block_mapping_key(emitter, event, false)
+
+	case yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE:
+		return yaml_emitter_emit_block_mapping_value(emitter, event, true)
+
+	case yaml_EMIT_BLOCK_MAPPING_VALUE_STATE:
+		return yaml_emitter_emit_block_mapping_value(emitter, event, false)
+
+	case yaml_EMIT_END_STATE:
+		return yaml_emitter_set_emitter_error(emitter, "expected nothing after STREAM-END")
+	}
+	panic("invalid emitter state")
+}
+
+// Expect STREAM-START.
+func yaml_emitter_emit_stream_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if event.typ != yaml_STREAM_START_EVENT {
+		return yaml_emitter_set_emitter_error(emitter, "expected STREAM-START")
+	}
+	if emitter.encoding == yaml_ANY_ENCODING {
+		emitter.encoding = event.encoding
+		if emitter.encoding == yaml_ANY_ENCODING {
+			emitter.encoding = yaml_UTF8_ENCODING
+		}
+	}
+	if emitter.best_indent < 2 || emitter.best_indent > 9 {
+		emitter.best_indent = 2
+	}
+	if emitter.best_width >= 0 && emitter.best_width <= emitter.best_indent*2 {
+		emitter.best_width = 80
+	}
+	if emitter.best_width < 0 {
+		emitter.best_width = 1<<31 - 1
+	}
+	if emitter.line_break == yaml_ANY_BREAK {
+		emitter.line_break = yaml_LN_BREAK
+	}
+
+	emitter.indent = -1
+	emitter.line = 0
+	emitter.column = 0
+	emitter.whitespace = true
+	emitter.indention = true
+
+	if emitter.encoding != yaml_UTF8_ENCODING {
+		if !yaml_emitter_write_bom(emitter) {
+			return false
+		}
+	}
+	emitter.state = yaml_EMIT_FIRST_DOCUMENT_START_STATE
+	return true
+}
+
+// Expect DOCUMENT-START or STREAM-END.
+func yaml_emitter_emit_document_start(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+
+	if event.typ == yaml_DOCUMENT_START_EVENT {
+
+		if event.version_directive != nil {
+			if !yaml_emitter_analyze_version_directive(emitter, event.version_directive) {
+				return false
+			}
+		}
+
+		for i := 0; i < len(event.tag_directives); i++ {
+			tag_directive := &event.tag_directives[i]
+			if !yaml_emitter_analyze_tag_directive(emitter, tag_directive) {
+				return false
+			}
+			if !yaml_emitter_append_tag_directive(emitter, tag_directive, false) {
+				return false
+			}
+		}
+
+		for i := 0; i < len(default_tag_directives); i++ {
+			tag_directive := &default_tag_directives[i]
+			if !yaml_emitter_append_tag_directive(emitter, tag_directive, true) {
+				return false
+			}
+		}
+
+		implicit := event.implicit
+		if !first || emitter.canonical {
+			implicit = false
+		}
+
+		if emitter.open_ended && (event.version_directive != nil || len(event.tag_directives) > 0) {
+			if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+
+		if event.version_directive != nil {
+			implicit = false
+			if !yaml_emitter_write_indicator(emitter, []byte("%YAML"), true, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indicator(emitter, []byte("1.1"), true, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+
+		if len(event.tag_directives) > 0 {
+			implicit = false
+			for i := 0; i < len(event.tag_directives); i++ {
+				tag_directive := &event.tag_directives[i]
+				if !yaml_emitter_write_indicator(emitter, []byte("%TAG"), true, false, false) {
+					return false
+				}
+				if !yaml_emitter_write_tag_handle(emitter, tag_directive.handle) {
+					return false
+				}
+				if !yaml_emitter_write_tag_content(emitter, tag_directive.prefix, true) {
+					return false
+				}
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+		}
+
+		if yaml_emitter_check_empty_document(emitter) {
+			implicit = false
+		}
+		if !implicit {
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+			if !yaml_emitter_write_indicator(emitter, []byte("---"), true, false, false) {
+				return false
+			}
+			if emitter.canonical {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+		}
+
+		emitter.state = yaml_EMIT_DOCUMENT_CONTENT_STATE
+		return true
+	}
+
+	if event.typ == yaml_STREAM_END_EVENT {
+		if emitter.open_ended {
+			if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+		if !yaml_emitter_flush(emitter) {
+			return false
+		}
+		emitter.state = yaml_EMIT_END_STATE
+		return true
+	}
+
+	return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-START or STREAM-END")
+}
+
+// Expect the root node.
+func yaml_emitter_emit_document_content(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	emitter.states = append(emitter.states, yaml_EMIT_DOCUMENT_END_STATE)
+	return yaml_emitter_emit_node(emitter, event, true, false, false, false)
+}
+
+// Expect DOCUMENT-END.
+func yaml_emitter_emit_document_end(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if event.typ != yaml_DOCUMENT_END_EVENT {
+		return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-END")
+	}
+	if !yaml_emitter_write_indent(emitter) {
+		return false
+	}
+	if !event.implicit {
+		// [Go] Allocate the slice elsewhere.
+		if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+			return false
+		}
+		if !yaml_emitter_write_indent(emitter) {
+			return false
+		}
+	}
+	if !yaml_emitter_flush(emitter) {
+		return false
+	}
+	emitter.state = yaml_EMIT_DOCUMENT_START_STATE
+	emitter.tag_directives = emitter.tag_directives[:0]
+	return true
+}
+
+// Expect a flow item node.
+func yaml_emitter_emit_flow_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+	if first {
+		if !yaml_emitter_write_indicator(emitter, []byte{'['}, true, true, false) {
+			return false
+		}
+		if !yaml_emitter_increase_indent(emitter, true, false) {
+			return false
+		}
+		emitter.flow_level++
+	}
+
+	if event.typ == yaml_SEQUENCE_END_EVENT {
+		emitter.flow_level--
+		emitter.indent = emitter.indents[len(emitter.indents)-1]
+		emitter.indents = emitter.indents[:len(emitter.indents)-1]
+		if emitter.canonical && !first {
+			if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{']'}, false, false, false) {
+			return false
+		}
+		emitter.state = emitter.states[len(emitter.states)-1]
+		emitter.states = emitter.states[:len(emitter.states)-1]
+
+		return true
+	}
+
+	if !first {
+		if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+			return false
+		}
+	}
+
+	if emitter.canonical || emitter.column > emitter.best_width {
+		if !yaml_emitter_write_indent(emitter) {
+			return false
+		}
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, true, false, false)
+}
+
+// Expect a flow key node.
+func yaml_emitter_emit_flow_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+	if first {
+		if !yaml_emitter_write_indicator(emitter, []byte{'{'}, true, true, false) {
+			return false
+		}
+		if !yaml_emitter_increase_indent(emitter, true, false) {
+			return false
+		}
+		emitter.flow_level++
+	}
+
+	if event.typ == yaml_MAPPING_END_EVENT {
+		emitter.flow_level--
+		emitter.indent = emitter.indents[len(emitter.indents)-1]
+		emitter.indents = emitter.indents[:len(emitter.indents)-1]
+		if emitter.canonical && !first {
+			if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{'}'}, false, false, false) {
+			return false
+		}
+		emitter.state = emitter.states[len(emitter.states)-1]
+		emitter.states = emitter.states[:len(emitter.states)-1]
+		return true
+	}
+
+	if !first {
+		if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+			return false
+		}
+	}
+	if emitter.canonical || emitter.column > emitter.best_width {
+		if !yaml_emitter_write_indent(emitter) {
+			return false
+		}
+	}
+
+	if !emitter.canonical && yaml_emitter_check_simple_key(emitter) {
+		emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)
+		return yaml_emitter_emit_node(emitter, event, false, false, true, true)
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, false) {
+		return false
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_VALUE_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a flow value node.
+func yaml_emitter_emit_flow_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
+	if simple {
+		if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
+			return false
+		}
+	} else {
+		if emitter.canonical || emitter.column > emitter.best_width {
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, false) {
+			return false
+		}
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_KEY_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a block item node.
+func yaml_emitter_emit_block_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+	if first {
+		if !yaml_emitter_increase_indent(emitter, false, emitter.mapping_context && !emitter.indention) {
+			return false
+		}
+	}
+	if event.typ == yaml_SEQUENCE_END_EVENT {
+		emitter.indent = emitter.indents[len(emitter.indents)-1]
+		emitter.indents = emitter.indents[:len(emitter.indents)-1]
+		emitter.state = emitter.states[len(emitter.states)-1]
+		emitter.states = emitter.states[:len(emitter.states)-1]
+		return true
+	}
+	if !yaml_emitter_write_indent(emitter) {
+		return false
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'-'}, true, false, true) {
+		return false
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, true, false, false)
+}
+
+// Expect a block key node.
+func yaml_emitter_emit_block_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+	if first {
+		if !yaml_emitter_increase_indent(emitter, false, false) {
+			return false
+		}
+	}
+	if event.typ == yaml_MAPPING_END_EVENT {
+		emitter.indent = emitter.indents[len(emitter.indents)-1]
+		emitter.indents = emitter.indents[:len(emitter.indents)-1]
+		emitter.state = emitter.states[len(emitter.states)-1]
+		emitter.states = emitter.states[:len(emitter.states)-1]
+		return true
+	}
+	if !yaml_emitter_write_indent(emitter) {
+		return false
+	}
+	if yaml_emitter_check_simple_key(emitter) {
+		emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)
+		return yaml_emitter_emit_node(emitter, event, false, false, true, true)
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, true) {
+		return false
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_VALUE_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a block value node.
+func yaml_emitter_emit_block_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
+	if simple {
+		if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
+			return false
+		}
+	} else {
+		if !yaml_emitter_write_indent(emitter) {
+			return false
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, true) {
+			return false
+		}
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_KEY_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a node.
+func yaml_emitter_emit_node(emitter *yaml_emitter_t, event *yaml_event_t,
+	root bool, sequence bool, mapping bool, simple_key bool) bool {
+
+	emitter.root_context = root
+	emitter.sequence_context = sequence
+	emitter.mapping_context = mapping
+	emitter.simple_key_context = simple_key
+
+	switch event.typ {
+	case yaml_ALIAS_EVENT:
+		return yaml_emitter_emit_alias(emitter, event)
+	case yaml_SCALAR_EVENT:
+		return yaml_emitter_emit_scalar(emitter, event)
+	case yaml_SEQUENCE_START_EVENT:
+		return yaml_emitter_emit_sequence_start(emitter, event)
+	case yaml_MAPPING_START_EVENT:
+		return yaml_emitter_emit_mapping_start(emitter, event)
+	default:
+		return yaml_emitter_set_emitter_error(emitter,
+			"expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS")
+	}
+	return false
+}
+
+// Expect ALIAS.
+func yaml_emitter_emit_alias(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if !yaml_emitter_process_anchor(emitter) {
+		return false
+	}
+	emitter.state = emitter.states[len(emitter.states)-1]
+	emitter.states = emitter.states[:len(emitter.states)-1]
+	return true
+}
+
+// Expect SCALAR.
+func yaml_emitter_emit_scalar(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if !yaml_emitter_select_scalar_style(emitter, event) {
+		return false
+	}
+	if !yaml_emitter_process_anchor(emitter) {
+		return false
+	}
+	if !yaml_emitter_process_tag(emitter) {
+		return false
+	}
+	if !yaml_emitter_increase_indent(emitter, true, false) {
+		return false
+	}
+	if !yaml_emitter_process_scalar(emitter) {
+		return false
+	}
+	emitter.indent = emitter.indents[len(emitter.indents)-1]
+	emitter.indents = emitter.indents[:len(emitter.indents)-1]
+	emitter.state = emitter.states[len(emitter.states)-1]
+	emitter.states = emitter.states[:len(emitter.states)-1]
+	return true
+}
+
+// Expect SEQUENCE-START.
+func yaml_emitter_emit_sequence_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if !yaml_emitter_process_anchor(emitter) {
+		return false
+	}
+	if !yaml_emitter_process_tag(emitter) {
+		return false
+	}
+	if emitter.flow_level > 0 || emitter.canonical || event.sequence_style() == yaml_FLOW_SEQUENCE_STYLE ||
+		yaml_emitter_check_empty_sequence(emitter) {
+		emitter.state = yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE
+	} else {
+		emitter.state = yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE
+	}
+	return true
+}
+
+// Expect MAPPING-START.
+func yaml_emitter_emit_mapping_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if !yaml_emitter_process_anchor(emitter) {
+		return false
+	}
+	if !yaml_emitter_process_tag(emitter) {
+		return false
+	}
+	if emitter.flow_level > 0 || emitter.canonical || event.mapping_style() == yaml_FLOW_MAPPING_STYLE ||
+		yaml_emitter_check_empty_mapping(emitter) {
+		emitter.state = yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE
+	} else {
+		emitter.state = yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE
+	}
+	return true
+}
+
+// Check if the document content is an empty scalar.
+func yaml_emitter_check_empty_document(emitter *yaml_emitter_t) bool {
+	return false // [Go] Huh?
+}
+
+// Check if the next events represent an empty sequence.
+func yaml_emitter_check_empty_sequence(emitter *yaml_emitter_t) bool {
+	if len(emitter.events)-emitter.events_head < 2 {
+		return false
+	}
+	return emitter.events[emitter.events_head].typ == yaml_SEQUENCE_START_EVENT &&
+		emitter.events[emitter.events_head+1].typ == yaml_SEQUENCE_END_EVENT
+}
+
+// Check if the next events represent an empty mapping.
+func yaml_emitter_check_empty_mapping(emitter *yaml_emitter_t) bool {
+	if len(emitter.events)-emitter.events_head < 2 {
+		return false
+	}
+	return emitter.events[emitter.events_head].typ == yaml_MAPPING_START_EVENT &&
+		emitter.events[emitter.events_head+1].typ == yaml_MAPPING_END_EVENT
+}
+
+// Check if the next node can be expressed as a simple key.
+func yaml_emitter_check_simple_key(emitter *yaml_emitter_t) bool {
+	length := 0
+	switch emitter.events[emitter.events_head].typ {
+	case yaml_ALIAS_EVENT:
+		length += len(emitter.anchor_data.anchor)
+	case yaml_SCALAR_EVENT:
+		if emitter.scalar_data.multiline {
+			return false
+		}
+		length += len(emitter.anchor_data.anchor) +
+			len(emitter.tag_data.handle) +
+			len(emitter.tag_data.suffix) +
+			len(emitter.scalar_data.value)
+	case yaml_SEQUENCE_START_EVENT:
+		if !yaml_emitter_check_empty_sequence(emitter) {
+			return false
+		}
+		length += len(emitter.anchor_data.anchor) +
+			len(emitter.tag_data.handle) +
+			len(emitter.tag_data.suffix)
+	case yaml_MAPPING_START_EVENT:
+		if !yaml_emitter_check_empty_mapping(emitter) {
+			return false
+		}
+		length += len(emitter.anchor_data.anchor) +
+			len(emitter.tag_data.handle) +
+			len(emitter.tag_data.suffix)
+	default:
+		return false
+	}
+	return length <= 128
+}
+
+// Determine an acceptable scalar style.
+func yaml_emitter_select_scalar_style(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+
+	no_tag := len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0
+	if no_tag && !event.implicit && !event.quoted_implicit {
+		return yaml_emitter_set_emitter_error(emitter, "neither tag nor implicit flags are specified")
+	}
+
+	style := event.scalar_style()
+	if style == yaml_ANY_SCALAR_STYLE {
+		style = yaml_PLAIN_SCALAR_STYLE
+	}
+	if emitter.canonical {
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	}
+	if emitter.simple_key_context && emitter.scalar_data.multiline {
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	}
+
+	if style == yaml_PLAIN_SCALAR_STYLE {
+		if emitter.flow_level > 0 && !emitter.scalar_data.flow_plain_allowed ||
+			emitter.flow_level == 0 && !emitter.scalar_data.block_plain_allowed {
+			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+		}
+		if len(emitter.scalar_data.value) == 0 && (emitter.flow_level > 0 || emitter.simple_key_context) {
+			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+		}
+		if no_tag && !event.implicit {
+			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+		}
+	}
+	if style == yaml_SINGLE_QUOTED_SCALAR_STYLE {
+		if !emitter.scalar_data.single_quoted_allowed {
+			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+		}
+	}
+	if style == yaml_LITERAL_SCALAR_STYLE || style == yaml_FOLDED_SCALAR_STYLE {
+		if !emitter.scalar_data.block_allowed || emitter.flow_level > 0 || emitter.simple_key_context {
+			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+		}
+	}
+
+	if no_tag && !event.quoted_implicit && style != yaml_PLAIN_SCALAR_STYLE {
+		emitter.tag_data.handle = []byte{'!'}
+	}
+	emitter.scalar_data.style = style
+	return true
+}
+
+// Write an achor.
+func yaml_emitter_process_anchor(emitter *yaml_emitter_t) bool {
+	if emitter.anchor_data.anchor == nil {
+		return true
+	}
+	c := []byte{'&'}
+	if emitter.anchor_data.alias {
+		c[0] = '*'
+	}
+	if !yaml_emitter_write_indicator(emitter, c, true, false, false) {
+		return false
+	}
+	return yaml_emitter_write_anchor(emitter, emitter.anchor_data.anchor)
+}
+
+// Write a tag.
+func yaml_emitter_process_tag(emitter *yaml_emitter_t) bool {
+	if len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 {
+		return true
+	}
+	if len(emitter.tag_data.handle) > 0 {
+		if !yaml_emitter_write_tag_handle(emitter, emitter.tag_data.handle) {
+			return false
+		}
+		if len(emitter.tag_data.suffix) > 0 {
+			if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
+				return false
+			}
+		}
+	} else {
+		// [Go] Allocate these slices elsewhere.
+		if !yaml_emitter_write_indicator(emitter, []byte("!<"), true, false, false) {
+			return false
+		}
+		if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
+			return false
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{'>'}, false, false, false) {
+			return false
+		}
+	}
+	return true
+}
+
+// Write a scalar.
+func yaml_emitter_process_scalar(emitter *yaml_emitter_t) bool {
+	switch emitter.scalar_data.style {
+	case yaml_PLAIN_SCALAR_STYLE:
+		return yaml_emitter_write_plain_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+	case yaml_SINGLE_QUOTED_SCALAR_STYLE:
+		return yaml_emitter_write_single_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+	case yaml_DOUBLE_QUOTED_SCALAR_STYLE:
+		return yaml_emitter_write_double_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+	case yaml_LITERAL_SCALAR_STYLE:
+		return yaml_emitter_write_literal_scalar(emitter, emitter.scalar_data.value)
+
+	case yaml_FOLDED_SCALAR_STYLE:
+		return yaml_emitter_write_folded_scalar(emitter, emitter.scalar_data.value)
+	}
+	panic("unknown scalar style")
+}
+
+// Check if a %YAML directive is valid.
+func yaml_emitter_analyze_version_directive(emitter *yaml_emitter_t, version_directive *yaml_version_directive_t) bool {
+	if version_directive.major != 1 || version_directive.minor != 1 {
+		return yaml_emitter_set_emitter_error(emitter, "incompatible %YAML directive")
+	}
+	return true
+}
+
+// Check if a %TAG directive is valid.
+func yaml_emitter_analyze_tag_directive(emitter *yaml_emitter_t, tag_directive *yaml_tag_directive_t) bool {
+	handle := tag_directive.handle
+	prefix := tag_directive.prefix
+	if len(handle) == 0 {
+		return yaml_emitter_set_emitter_error(emitter, "tag handle must not be empty")
+	}
+	if handle[0] != '!' {
+		return yaml_emitter_set_emitter_error(emitter, "tag handle must start with '!'")
+	}
+	if handle[len(handle)-1] != '!' {
+		return yaml_emitter_set_emitter_error(emitter, "tag handle must end with '!'")
+	}
+	for i := 1; i < len(handle)-1; i += width(handle[i]) {
+		if !is_alpha(handle, i) {
+			return yaml_emitter_set_emitter_error(emitter, "tag handle must contain alphanumerical characters only")
+		}
+	}
+	if len(prefix) == 0 {
+		return yaml_emitter_set_emitter_error(emitter, "tag prefix must not be empty")
+	}
+	return true
+}
+
+// Check if an anchor is valid.
+func yaml_emitter_analyze_anchor(emitter *yaml_emitter_t, anchor []byte, alias bool) bool {
+	if len(anchor) == 0 {
+		problem := "anchor value must not be empty"
+		if alias {
+			problem = "alias value must not be empty"
+		}
+		return yaml_emitter_set_emitter_error(emitter, problem)
+	}
+	for i := 0; i < len(anchor); i += width(anchor[i]) {
+		if !is_alpha(anchor, i) {
+			problem := "anchor value must contain alphanumerical characters only"
+			if alias {
+				problem = "alias value must contain alphanumerical characters only"
+			}
+			return yaml_emitter_set_emitter_error(emitter, problem)
+		}
+	}
+	emitter.anchor_data.anchor = anchor
+	emitter.anchor_data.alias = alias
+	return true
+}
+
+// Check if a tag is valid.
+func yaml_emitter_analyze_tag(emitter *yaml_emitter_t, tag []byte) bool {
+	if len(tag) == 0 {
+		return yaml_emitter_set_emitter_error(emitter, "tag value must not be empty")
+	}
+	for i := 0; i < len(emitter.tag_directives); i++ {
+		tag_directive := &emitter.tag_directives[i]
+		if bytes.HasPrefix(tag, tag_directive.prefix) {
+			emitter.tag_data.handle = tag_directive.handle
+			emitter.tag_data.suffix = tag[len(tag_directive.prefix):]
+			return true
+		}
+	}
+	emitter.tag_data.suffix = tag
+	return true
+}
+
+// Check if a scalar is valid.
+func yaml_emitter_analyze_scalar(emitter *yaml_emitter_t, value []byte) bool {
+	var (
+		block_indicators   = false
+		flow_indicators    = false
+		line_breaks        = false
+		special_characters = false
+
+		leading_space  = false
+		leading_break  = false
+		trailing_space = false
+		trailing_break = false
+		break_space    = false
+		space_break    = false
+
+		preceeded_by_whitespace = false
+		followed_by_whitespace  = false
+		previous_space          = false
+		previous_break          = false
+	)
+
+	emitter.scalar_data.value = value
+
+	if len(value) == 0 {
+		emitter.scalar_data.multiline = false
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = true
+		emitter.scalar_data.single_quoted_allowed = true
+		emitter.scalar_data.block_allowed = false
+		return true
+	}
+
+	if len(value) >= 3 && ((value[0] == '-' && value[1] == '-' && value[2] == '-') || (value[0] == '.' && value[1] == '.' && value[2] == '.')) {
+		block_indicators = true
+		flow_indicators = true
+	}
+
+	preceeded_by_whitespace = true
+	for i, w := 0, 0; i < len(value); i += w {
+		w = width(value[i])
+		followed_by_whitespace = i+w >= len(value) || is_blank(value, i+w)
+
+		if i == 0 {
+			switch value[i] {
+			case '#', ',', '[', ']', '{', '}', '&', '*', '!', '|', '>', '\'', '"', '%', '@', '`':
+				flow_indicators = true
+				block_indicators = true
+			case '?', ':':
+				flow_indicators = true
+				if followed_by_whitespace {
+					block_indicators = true
+				}
+			case '-':
+				if followed_by_whitespace {
+					flow_indicators = true
+					block_indicators = true
+				}
+			}
+		} else {
+			switch value[i] {
+			case ',', '?', '[', ']', '{', '}':
+				flow_indicators = true
+			case ':':
+				flow_indicators = true
+				if followed_by_whitespace {
+					block_indicators = true
+				}
+			case '#':
+				if preceeded_by_whitespace {
+					flow_indicators = true
+					block_indicators = true
+				}
+			}
+		}
+
+		if !is_printable(value, i) || !is_ascii(value, i) && !emitter.unicode {
+			special_characters = true
+		}
+		if is_space(value, i) {
+			if i == 0 {
+				leading_space = true
+			}
+			if i+width(value[i]) == len(value) {
+				trailing_space = true
+			}
+			if previous_break {
+				break_space = true
+			}
+			previous_space = true
+			previous_break = false
+		} else if is_break(value, i) {
+			line_breaks = true
+			if i == 0 {
+				leading_break = true
+			}
+			if i+width(value[i]) == len(value) {
+				trailing_break = true
+			}
+			if previous_space {
+				space_break = true
+			}
+			previous_space = false
+			previous_break = true
+		} else {
+			previous_space = false
+			previous_break = false
+		}
+
+		// [Go]: Why 'z'? Couldn't be the end of the string as that's the loop condition.
+		preceeded_by_whitespace = is_blankz(value, i)
+	}
+
+	emitter.scalar_data.multiline = line_breaks
+	emitter.scalar_data.flow_plain_allowed = true
+	emitter.scalar_data.block_plain_allowed = true
+	emitter.scalar_data.single_quoted_allowed = true
+	emitter.scalar_data.block_allowed = true
+
+	if leading_space || leading_break || trailing_space || trailing_break {
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = false
+	}
+	if trailing_space {
+		emitter.scalar_data.block_allowed = false
+	}
+	if break_space {
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = false
+		emitter.scalar_data.single_quoted_allowed = false
+	}
+	if space_break || special_characters {
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = false
+		emitter.scalar_data.single_quoted_allowed = false
+		emitter.scalar_data.block_allowed = false
+	}
+	if line_breaks {
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = false
+	}
+	if flow_indicators {
+		emitter.scalar_data.flow_plain_allowed = false
+	}
+	if block_indicators {
+		emitter.scalar_data.block_plain_allowed = false
+	}
+	return true
+}
+
+// Check if the event data is valid.
+func yaml_emitter_analyze_event(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+
+	emitter.anchor_data.anchor = nil
+	emitter.tag_data.handle = nil
+	emitter.tag_data.suffix = nil
+	emitter.scalar_data.value = nil
+
+	switch event.typ {
+	case yaml_ALIAS_EVENT:
+		if !yaml_emitter_analyze_anchor(emitter, event.anchor, true) {
+			return false
+		}
+
+	case yaml_SCALAR_EVENT:
+		if len(event.anchor) > 0 {
+			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+				return false
+			}
+		}
+		if len(event.tag) > 0 && (emitter.canonical || (!event.implicit && !event.quoted_implicit)) {
+			if !yaml_emitter_analyze_tag(emitter, event.tag) {
+				return false
+			}
+		}
+		if !yaml_emitter_analyze_scalar(emitter, event.value) {
+			return false
+		}
+
+	case yaml_SEQUENCE_START_EVENT:
+		if len(event.anchor) > 0 {
+			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+				return false
+			}
+		}
+		if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
+			if !yaml_emitter_analyze_tag(emitter, event.tag) {
+				return false
+			}
+		}
+
+	case yaml_MAPPING_START_EVENT:
+		if len(event.anchor) > 0 {
+			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+				return false
+			}
+		}
+		if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
+			if !yaml_emitter_analyze_tag(emitter, event.tag) {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+// Write the BOM character.
+func yaml_emitter_write_bom(emitter *yaml_emitter_t) bool {
+	if !flush(emitter) {
+		return false
+	}
+	pos := emitter.buffer_pos
+	emitter.buffer[pos+0] = '\xEF'
+	emitter.buffer[pos+1] = '\xBB'
+	emitter.buffer[pos+2] = '\xBF'
+	emitter.buffer_pos += 3
+	return true
+}
+
+func yaml_emitter_write_indent(emitter *yaml_emitter_t) bool {
+	indent := emitter.indent
+	if indent < 0 {
+		indent = 0
+	}
+	if !emitter.indention || emitter.column > indent || (emitter.column == indent && !emitter.whitespace) {
+		if !put_break(emitter) {
+			return false
+		}
+	}
+	for emitter.column < indent {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+	emitter.whitespace = true
+	emitter.indention = true
+	return true
+}
+
+func yaml_emitter_write_indicator(emitter *yaml_emitter_t, indicator []byte, need_whitespace, is_whitespace, is_indention bool) bool {
+	if need_whitespace && !emitter.whitespace {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+	if !write_all(emitter, indicator) {
+		return false
+	}
+	emitter.whitespace = is_whitespace
+	emitter.indention = (emitter.indention && is_indention)
+	emitter.open_ended = false
+	return true
+}
+
+func yaml_emitter_write_anchor(emitter *yaml_emitter_t, value []byte) bool {
+	if !write_all(emitter, value) {
+		return false
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_tag_handle(emitter *yaml_emitter_t, value []byte) bool {
+	if !emitter.whitespace {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+	if !write_all(emitter, value) {
+		return false
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_tag_content(emitter *yaml_emitter_t, value []byte, need_whitespace bool) bool {
+	if need_whitespace && !emitter.whitespace {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+	for i := 0; i < len(value); {
+		var must_write bool
+		switch value[i] {
+		case ';', '/', '?', ':', '@', '&', '=', '+', '$', ',', '_', '.', '~', '*', '\'', '(', ')', '[', ']':
+			must_write = true
+		default:
+			must_write = is_alpha(value, i)
+		}
+		if must_write {
+			if !write(emitter, value, &i) {
+				return false
+			}
+		} else {
+			w := width(value[i])
+			for k := 0; k < w; k++ {
+				octet := value[i]
+				i++
+				if !put(emitter, '%') {
+					return false
+				}
+
+				c := octet >> 4
+				if c < 10 {
+					c += '0'
+				} else {
+					c += 'A' - 10
+				}
+				if !put(emitter, c) {
+					return false
+				}
+
+				c = octet & 0x0f
+				if c < 10 {
+					c += '0'
+				} else {
+					c += 'A' - 10
+				}
+				if !put(emitter, c) {
+					return false
+				}
+			}
+		}
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_plain_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+	if !emitter.whitespace {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+
+	spaces := false
+	breaks := false
+	for i := 0; i < len(value); {
+		if is_space(value, i) {
+			if allow_breaks && !spaces && emitter.column > emitter.best_width && !is_space(value, i+1) {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				i += width(value[i])
+			} else {
+				if !write(emitter, value, &i) {
+					return false
+				}
+			}
+			spaces = true
+		} else if is_break(value, i) {
+			if !breaks && value[i] == '\n' {
+				if !put_break(emitter) {
+					return false
+				}
+			}
+			if !write_break(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = true
+			breaks = true
+		} else {
+			if breaks {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+			if !write(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = false
+			spaces = false
+			breaks = false
+		}
+	}
+
+	emitter.whitespace = false
+	emitter.indention = false
+	if emitter.root_context {
+		emitter.open_ended = true
+	}
+
+	return true
+}
+
+func yaml_emitter_write_single_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+
+	if !yaml_emitter_write_indicator(emitter, []byte{'\''}, true, false, false) {
+		return false
+	}
+
+	spaces := false
+	breaks := false
+	for i := 0; i < len(value); {
+		if is_space(value, i) {
+			if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 && !is_space(value, i+1) {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				i += width(value[i])
+			} else {
+				if !write(emitter, value, &i) {
+					return false
+				}
+			}
+			spaces = true
+		} else if is_break(value, i) {
+			if !breaks && value[i] == '\n' {
+				if !put_break(emitter) {
+					return false
+				}
+			}
+			if !write_break(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = true
+			breaks = true
+		} else {
+			if breaks {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+			if value[i] == '\'' {
+				if !put(emitter, '\'') {
+					return false
+				}
+			}
+			if !write(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = false
+			spaces = false
+			breaks = false
+		}
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'\''}, false, false, false) {
+		return false
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_double_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+	spaces := false
+	if !yaml_emitter_write_indicator(emitter, []byte{'"'}, true, false, false) {
+		return false
+	}
+
+	for i := 0; i < len(value); {
+		if !is_printable(value, i) || (!emitter.unicode && !is_ascii(value, i)) ||
+			is_bom(value, i) || is_break(value, i) ||
+			value[i] == '"' || value[i] == '\\' {
+
+			octet := value[i]
+
+			var w int
+			var v rune
+			switch {
+			case octet&0x80 == 0x00:
+				w, v = 1, rune(octet&0x7F)
+			case octet&0xE0 == 0xC0:
+				w, v = 2, rune(octet&0x1F)
+			case octet&0xF0 == 0xE0:
+				w, v = 3, rune(octet&0x0F)
+			case octet&0xF8 == 0xF0:
+				w, v = 4, rune(octet&0x07)
+			}
+			for k := 1; k < w; k++ {
+				octet = value[i+k]
+				v = (v << 6) + (rune(octet) & 0x3F)
+			}
+			i += w
+
+			if !put(emitter, '\\') {
+				return false
+			}
+
+			var ok bool
+			switch v {
+			case 0x00:
+				ok = put(emitter, '0')
+			case 0x07:
+				ok = put(emitter, 'a')
+			case 0x08:
+				ok = put(emitter, 'b')
+			case 0x09:
+				ok = put(emitter, 't')
+			case 0x0A:
+				ok = put(emitter, 'n')
+			case 0x0b:
+				ok = put(emitter, 'v')
+			case 0x0c:
+				ok = put(emitter, 'f')
+			case 0x0d:
+				ok = put(emitter, 'r')
+			case 0x1b:
+				ok = put(emitter, 'e')
+			case 0x22:
+				ok = put(emitter, '"')
+			case 0x5c:
+				ok = put(emitter, '\\')
+			case 0x85:
+				ok = put(emitter, 'N')
+			case 0xA0:
+				ok = put(emitter, '_')
+			case 0x2028:
+				ok = put(emitter, 'L')
+			case 0x2029:
+				ok = put(emitter, 'P')
+			default:
+				if v <= 0xFF {
+					ok = put(emitter, 'x')
+					w = 2
+				} else if v <= 0xFFFF {
+					ok = put(emitter, 'u')
+					w = 4
+				} else {
+					ok = put(emitter, 'U')
+					w = 8
+				}
+				for k := (w - 1) * 4; ok && k >= 0; k -= 4 {
+					digit := byte((v >> uint(k)) & 0x0F)
+					if digit < 10 {
+						ok = put(emitter, digit+'0')
+					} else {
+						ok = put(emitter, digit+'A'-10)
+					}
+				}
+			}
+			if !ok {
+				return false
+			}
+			spaces = false
+		} else if is_space(value, i) {
+			if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				if is_space(value, i+1) {
+					if !put(emitter, '\\') {
+						return false
+					}
+				}
+				i += width(value[i])
+			} else if !write(emitter, value, &i) {
+				return false
+			}
+			spaces = true
+		} else {
+			if !write(emitter, value, &i) {
+				return false
+			}
+			spaces = false
+		}
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'"'}, false, false, false) {
+		return false
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_block_scalar_hints(emitter *yaml_emitter_t, value []byte) bool {
+	if is_space(value, 0) || is_break(value, 0) {
+		indent_hint := []byte{'0' + byte(emitter.best_indent)}
+		if !yaml_emitter_write_indicator(emitter, indent_hint, false, false, false) {
+			return false
+		}
+	}
+
+	emitter.open_ended = false
+
+	var chomp_hint [1]byte
+	if len(value) == 0 {
+		chomp_hint[0] = '-'
+	} else {
+		i := len(value) - 1
+		for value[i]&0xC0 == 0x80 {
+			i--
+		}
+		if !is_break(value, i) {
+			chomp_hint[0] = '-'
+		} else if i == 0 {
+			chomp_hint[0] = '+'
+			emitter.open_ended = true
+		} else {
+			i--
+			for value[i]&0xC0 == 0x80 {
+				i--
+			}
+			if is_break(value, i) {
+				chomp_hint[0] = '+'
+				emitter.open_ended = true
+			}
+		}
+	}
+	if chomp_hint[0] != 0 {
+		if !yaml_emitter_write_indicator(emitter, chomp_hint[:], false, false, false) {
+			return false
+		}
+	}
+	return true
+}
+
+func yaml_emitter_write_literal_scalar(emitter *yaml_emitter_t, value []byte) bool {
+	if !yaml_emitter_write_indicator(emitter, []byte{'|'}, true, false, false) {
+		return false
+	}
+	if !yaml_emitter_write_block_scalar_hints(emitter, value) {
+		return false
+	}
+	if !put_break(emitter) {
+		return false
+	}
+	emitter.indention = true
+	emitter.whitespace = true
+	breaks := true
+	for i := 0; i < len(value); {
+		if is_break(value, i) {
+			if !write_break(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = true
+			breaks = true
+		} else {
+			if breaks {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+			if !write(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = false
+			breaks = false
+		}
+	}
+
+	return true
+}
+
+func yaml_emitter_write_folded_scalar(emitter *yaml_emitter_t, value []byte) bool {
+	if !yaml_emitter_write_indicator(emitter, []byte{'>'}, true, false, false) {
+		return false
+	}
+	if !yaml_emitter_write_block_scalar_hints(emitter, value) {
+		return false
+	}
+
+	if !put_break(emitter) {
+		return false
+	}
+	emitter.indention = true
+	emitter.whitespace = true
+
+	breaks := true
+	leading_spaces := true
+	for i := 0; i < len(value); {
+		if is_break(value, i) {
+			if !breaks && !leading_spaces && value[i] == '\n' {
+				k := 0
+				for is_break(value, k) {
+					k += width(value[k])
+				}
+				if !is_blankz(value, k) {
+					if !put_break(emitter) {
+						return false
+					}
+				}
+			}
+			if !write_break(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = true
+			breaks = true
+		} else {
+			if breaks {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				leading_spaces = is_blank(value, i)
+			}
+			if !breaks && is_space(value, i) && !is_space(value, i+1) && emitter.column > emitter.best_width {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				i += width(value[i])
+			} else {
+				if !write(emitter, value, &i) {
+					return false
+				}
+			}
+			emitter.indention = false
+			breaks = false
+		}
+	}
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/encode.go b/vendor/gopkg.in/yaml.v2/encode.go
new file mode 100644
index 0000000..84f8499
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/encode.go
@@ -0,0 +1,306 @@
+package yaml
+
+import (
+	"encoding"
+	"fmt"
+	"reflect"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type encoder struct {
+	emitter yaml_emitter_t
+	event   yaml_event_t
+	out     []byte
+	flow    bool
+}
+
+func newEncoder() (e *encoder) {
+	e = &encoder{}
+	e.must(yaml_emitter_initialize(&e.emitter))
+	yaml_emitter_set_output_string(&e.emitter, &e.out)
+	yaml_emitter_set_unicode(&e.emitter, true)
+	e.must(yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING))
+	e.emit()
+	e.must(yaml_document_start_event_initialize(&e.event, nil, nil, true))
+	e.emit()
+	return e
+}
+
+func (e *encoder) finish() {
+	e.must(yaml_document_end_event_initialize(&e.event, true))
+	e.emit()
+	e.emitter.open_ended = false
+	e.must(yaml_stream_end_event_initialize(&e.event))
+	e.emit()
+}
+
+func (e *encoder) destroy() {
+	yaml_emitter_delete(&e.emitter)
+}
+
+func (e *encoder) emit() {
+	// This will internally delete the e.event value.
+	if !yaml_emitter_emit(&e.emitter, &e.event) && e.event.typ != yaml_DOCUMENT_END_EVENT && e.event.typ != yaml_STREAM_END_EVENT {
+		e.must(false)
+	}
+}
+
+func (e *encoder) must(ok bool) {
+	if !ok {
+		msg := e.emitter.problem
+		if msg == "" {
+			msg = "unknown problem generating YAML content"
+		}
+		failf("%s", msg)
+	}
+}
+
+func (e *encoder) marshal(tag string, in reflect.Value) {
+	if !in.IsValid() {
+		e.nilv()
+		return
+	}
+	iface := in.Interface()
+	if m, ok := iface.(Marshaler); ok {
+		v, err := m.MarshalYAML()
+		if err != nil {
+			fail(err)
+		}
+		if v == nil {
+			e.nilv()
+			return
+		}
+		in = reflect.ValueOf(v)
+	} else if m, ok := iface.(encoding.TextMarshaler); ok {
+		text, err := m.MarshalText()
+		if err != nil {
+			fail(err)
+		}
+		in = reflect.ValueOf(string(text))
+	}
+	switch in.Kind() {
+	case reflect.Interface:
+		if in.IsNil() {
+			e.nilv()
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Map:
+		e.mapv(tag, in)
+	case reflect.Ptr:
+		if in.IsNil() {
+			e.nilv()
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Struct:
+		e.structv(tag, in)
+	case reflect.Slice:
+		if in.Type().Elem() == mapItemType {
+			e.itemsv(tag, in)
+		} else {
+			e.slicev(tag, in)
+		}
+	case reflect.String:
+		e.stringv(tag, in)
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		if in.Type() == durationType {
+			e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String()))
+		} else {
+			e.intv(tag, in)
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		e.uintv(tag, in)
+	case reflect.Float32, reflect.Float64:
+		e.floatv(tag, in)
+	case reflect.Bool:
+		e.boolv(tag, in)
+	default:
+		panic("cannot marshal type: " + in.Type().String())
+	}
+}
+
+func (e *encoder) mapv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		keys := keyList(in.MapKeys())
+		sort.Sort(keys)
+		for _, k := range keys {
+			e.marshal("", k)
+			e.marshal("", in.MapIndex(k))
+		}
+	})
+}
+
+func (e *encoder) itemsv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem)
+		for _, item := range slice {
+			e.marshal("", reflect.ValueOf(item.Key))
+			e.marshal("", reflect.ValueOf(item.Value))
+		}
+	})
+}
+
+func (e *encoder) structv(tag string, in reflect.Value) {
+	sinfo, err := getStructInfo(in.Type())
+	if err != nil {
+		panic(err)
+	}
+	e.mappingv(tag, func() {
+		for _, info := range sinfo.FieldsList {
+			var value reflect.Value
+			if info.Inline == nil {
+				value = in.Field(info.Num)
+			} else {
+				value = in.FieldByIndex(info.Inline)
+			}
+			if info.OmitEmpty && isZero(value) {
+				continue
+			}
+			e.marshal("", reflect.ValueOf(info.Key))
+			e.flow = info.Flow
+			e.marshal("", value)
+		}
+		if sinfo.InlineMap >= 0 {
+			m := in.Field(sinfo.InlineMap)
+			if m.Len() > 0 {
+				e.flow = false
+				keys := keyList(m.MapKeys())
+				sort.Sort(keys)
+				for _, k := range keys {
+					if _, found := sinfo.FieldsMap[k.String()]; found {
+						panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String()))
+					}
+					e.marshal("", k)
+					e.flow = false
+					e.marshal("", m.MapIndex(k))
+				}
+			}
+		}
+	})
+}
+
+func (e *encoder) mappingv(tag string, f func()) {
+	implicit := tag == ""
+	style := yaml_BLOCK_MAPPING_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_MAPPING_STYLE
+	}
+	e.must(yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	f()
+	e.must(yaml_mapping_end_event_initialize(&e.event))
+	e.emit()
+}
+
+func (e *encoder) slicev(tag string, in reflect.Value) {
+	implicit := tag == ""
+	style := yaml_BLOCK_SEQUENCE_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_SEQUENCE_STYLE
+	}
+	e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	n := in.Len()
+	for i := 0; i < n; i++ {
+		e.marshal("", in.Index(i))
+	}
+	e.must(yaml_sequence_end_event_initialize(&e.event))
+	e.emit()
+}
+
+// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
+//
+// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
+// in YAML 1.2 and by this package, but these should be marshalled quoted for
+// the time being for compatibility with other parsers.
+func isBase60Float(s string) (result bool) {
+	// Fast path.
+	if s == "" {
+		return false
+	}
+	c := s[0]
+	if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
+		return false
+	}
+	// Do the full match.
+	return base60float.MatchString(s)
+}
+
+// From http://yaml.org/type/float.html, except the regular expression there
+// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
+var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
+
+func (e *encoder) stringv(tag string, in reflect.Value) {
+	var style yaml_scalar_style_t
+	s := in.String()
+	rtag, rs := resolve("", s)
+	if rtag == yaml_BINARY_TAG {
+		if tag == "" || tag == yaml_STR_TAG {
+			tag = rtag
+			s = rs.(string)
+		} else if tag == yaml_BINARY_TAG {
+			failf("explicitly tagged !!binary data must be base64-encoded")
+		} else {
+			failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
+		}
+	}
+	if tag == "" && (rtag != yaml_STR_TAG || isBase60Float(s)) {
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	} else if strings.Contains(s, "\n") {
+		style = yaml_LITERAL_SCALAR_STYLE
+	} else {
+		style = yaml_PLAIN_SCALAR_STYLE
+	}
+	e.emitScalar(s, "", tag, style)
+}
+
+func (e *encoder) boolv(tag string, in reflect.Value) {
+	var s string
+	if in.Bool() {
+		s = "true"
+	} else {
+		s = "false"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) intv(tag string, in reflect.Value) {
+	s := strconv.FormatInt(in.Int(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) uintv(tag string, in reflect.Value) {
+	s := strconv.FormatUint(in.Uint(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) floatv(tag string, in reflect.Value) {
+	// FIXME: Handle 64 bits here.
+	s := strconv.FormatFloat(float64(in.Float()), 'g', -1, 32)
+	switch s {
+	case "+Inf":
+		s = ".inf"
+	case "-Inf":
+		s = "-.inf"
+	case "NaN":
+		s = ".nan"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) nilv() {
+	e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
+	implicit := tag == ""
+	e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
+	e.emit()
+}
diff --git a/vendor/gopkg.in/yaml.v2/parserc.go b/vendor/gopkg.in/yaml.v2/parserc.go
new file mode 100644
index 0000000..0a7037a
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/parserc.go
@@ -0,0 +1,1096 @@
+package yaml
+
+import (
+	"bytes"
+)
+
+// The parser implements the following grammar:
+//
+// stream               ::= STREAM-START implicit_document? explicit_document* STREAM-END
+// implicit_document    ::= block_node DOCUMENT-END*
+// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+// block_node_or_indentless_sequence    ::=
+//                          ALIAS
+//                          | properties (block_content | indentless_block_sequence)?
+//                          | block_content
+//                          | indentless_block_sequence
+// block_node           ::= ALIAS
+//                          | properties block_content?
+//                          | block_content
+// flow_node            ::= ALIAS
+//                          | properties flow_content?
+//                          | flow_content
+// properties           ::= TAG ANCHOR? | ANCHOR TAG?
+// block_content        ::= block_collection | flow_collection | SCALAR
+// flow_content         ::= flow_collection | SCALAR
+// block_collection     ::= block_sequence | block_mapping
+// flow_collection      ::= flow_sequence | flow_mapping
+// block_sequence       ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+// indentless_sequence  ::= (BLOCK-ENTRY block_node?)+
+// block_mapping        ::= BLOCK-MAPPING_START
+//                          ((KEY block_node_or_indentless_sequence?)?
+//                          (VALUE block_node_or_indentless_sequence?)?)*
+//                          BLOCK-END
+// flow_sequence        ::= FLOW-SEQUENCE-START
+//                          (flow_sequence_entry FLOW-ENTRY)*
+//                          flow_sequence_entry?
+//                          FLOW-SEQUENCE-END
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// flow_mapping         ::= FLOW-MAPPING-START
+//                          (flow_mapping_entry FLOW-ENTRY)*
+//                          flow_mapping_entry?
+//                          FLOW-MAPPING-END
+// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+
+// Peek the next token in the token queue.
+func peek_token(parser *yaml_parser_t) *yaml_token_t {
+	if parser.token_available || yaml_parser_fetch_more_tokens(parser) {
+		return &parser.tokens[parser.tokens_head]
+	}
+	return nil
+}
+
+// Remove the next token from the queue (must be called after peek_token).
+func skip_token(parser *yaml_parser_t) {
+	parser.token_available = false
+	parser.tokens_parsed++
+	parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN
+	parser.tokens_head++
+}
+
+// Get the next event.
+func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool {
+	// Erase the event object.
+	*event = yaml_event_t{}
+
+	// No events after the end of the stream or error.
+	if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE {
+		return true
+	}
+
+	// Generate the next event.
+	return yaml_parser_state_machine(parser, event)
+}
+
+// Set parser error.
+func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool {
+	parser.error = yaml_PARSER_ERROR
+	parser.problem = problem
+	parser.problem_mark = problem_mark
+	return false
+}
+
+func yaml_parser_set_parser_error_context(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string, problem_mark yaml_mark_t) bool {
+	parser.error = yaml_PARSER_ERROR
+	parser.context = context
+	parser.context_mark = context_mark
+	parser.problem = problem
+	parser.problem_mark = problem_mark
+	return false
+}
+
+// State dispatcher.
+func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool {
+	//trace("yaml_parser_state_machine", "state:", parser.state.String())
+
+	switch parser.state {
+	case yaml_PARSE_STREAM_START_STATE:
+		return yaml_parser_parse_stream_start(parser, event)
+
+	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+		return yaml_parser_parse_document_start(parser, event, true)
+
+	case yaml_PARSE_DOCUMENT_START_STATE:
+		return yaml_parser_parse_document_start(parser, event, false)
+
+	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+		return yaml_parser_parse_document_content(parser, event)
+
+	case yaml_PARSE_DOCUMENT_END_STATE:
+		return yaml_parser_parse_document_end(parser, event)
+
+	case yaml_PARSE_BLOCK_NODE_STATE:
+		return yaml_parser_parse_node(parser, event, true, false)
+
+	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+		return yaml_parser_parse_node(parser, event, true, true)
+
+	case yaml_PARSE_FLOW_NODE_STATE:
+		return yaml_parser_parse_node(parser, event, false, false)
+
+	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+		return yaml_parser_parse_block_sequence_entry(parser, event, true)
+
+	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+		return yaml_parser_parse_block_sequence_entry(parser, event, false)
+
+	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+		return yaml_parser_parse_indentless_sequence_entry(parser, event)
+
+	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return yaml_parser_parse_block_mapping_key(parser, event, true)
+
+	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+		return yaml_parser_parse_block_mapping_key(parser, event, false)
+
+	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+		return yaml_parser_parse_block_mapping_value(parser, event)
+
+	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+		return yaml_parser_parse_flow_sequence_entry(parser, event, true)
+
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+		return yaml_parser_parse_flow_sequence_entry(parser, event, false)
+
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+		return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event)
+
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+		return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event)
+
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+		return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event)
+
+	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+		return yaml_parser_parse_flow_mapping_key(parser, event, true)
+
+	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+		return yaml_parser_parse_flow_mapping_key(parser, event, false)
+
+	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+		return yaml_parser_parse_flow_mapping_value(parser, event, false)
+
+	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+		return yaml_parser_parse_flow_mapping_value(parser, event, true)
+
+	default:
+		panic("invalid parser state")
+	}
+	return false
+}
+
+// Parse the production:
+// stream   ::= STREAM-START implicit_document? explicit_document* STREAM-END
+//              ************
+func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ != yaml_STREAM_START_TOKEN {
+		return yaml_parser_set_parser_error(parser, "did not find expected <stream-start>", token.start_mark)
+	}
+	parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE
+	*event = yaml_event_t{
+		typ:        yaml_STREAM_START_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.end_mark,
+		encoding:   token.encoding,
+	}
+	skip_token(parser)
+	return true
+}
+
+// Parse the productions:
+// implicit_document    ::= block_node DOCUMENT-END*
+//                          *
+// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+//                          *************************
+func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool {
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	// Parse extra document end indicators.
+	if !implicit {
+		for token.typ == yaml_DOCUMENT_END_TOKEN {
+			skip_token(parser)
+			token = peek_token(parser)
+			if token == nil {
+				return false
+			}
+		}
+	}
+
+	if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN &&
+		token.typ != yaml_TAG_DIRECTIVE_TOKEN &&
+		token.typ != yaml_DOCUMENT_START_TOKEN &&
+		token.typ != yaml_STREAM_END_TOKEN {
+		// Parse an implicit document.
+		if !yaml_parser_process_directives(parser, nil, nil) {
+			return false
+		}
+		parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
+		parser.state = yaml_PARSE_BLOCK_NODE_STATE
+
+		*event = yaml_event_t{
+			typ:        yaml_DOCUMENT_START_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+		}
+
+	} else if token.typ != yaml_STREAM_END_TOKEN {
+		// Parse an explicit document.
+		var version_directive *yaml_version_directive_t
+		var tag_directives []yaml_tag_directive_t
+		start_mark := token.start_mark
+		if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) {
+			return false
+		}
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_DOCUMENT_START_TOKEN {
+			yaml_parser_set_parser_error(parser,
+				"did not find expected <document start>", token.start_mark)
+			return false
+		}
+		parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
+		parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE
+		end_mark := token.end_mark
+
+		*event = yaml_event_t{
+			typ:               yaml_DOCUMENT_START_EVENT,
+			start_mark:        start_mark,
+			end_mark:          end_mark,
+			version_directive: version_directive,
+			tag_directives:    tag_directives,
+			implicit:          false,
+		}
+		skip_token(parser)
+
+	} else {
+		// Parse the stream end.
+		parser.state = yaml_PARSE_END_STATE
+		*event = yaml_event_t{
+			typ:        yaml_STREAM_END_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+		}
+		skip_token(parser)
+	}
+
+	return true
+}
+
+// Parse the productions:
+// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+//                                                    ***********
+//
+func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ == yaml_VERSION_DIRECTIVE_TOKEN ||
+		token.typ == yaml_TAG_DIRECTIVE_TOKEN ||
+		token.typ == yaml_DOCUMENT_START_TOKEN ||
+		token.typ == yaml_DOCUMENT_END_TOKEN ||
+		token.typ == yaml_STREAM_END_TOKEN {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+		return yaml_parser_process_empty_scalar(parser, event,
+			token.start_mark)
+	}
+	return yaml_parser_parse_node(parser, event, true, false)
+}
+
+// Parse the productions:
+// implicit_document    ::= block_node DOCUMENT-END*
+//                                     *************
+// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+//
+func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	start_mark := token.start_mark
+	end_mark := token.start_mark
+
+	implicit := true
+	if token.typ == yaml_DOCUMENT_END_TOKEN {
+		end_mark = token.end_mark
+		skip_token(parser)
+		implicit = false
+	}
+
+	parser.tag_directives = parser.tag_directives[:0]
+
+	parser.state = yaml_PARSE_DOCUMENT_START_STATE
+	*event = yaml_event_t{
+		typ:        yaml_DOCUMENT_END_EVENT,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		implicit:   implicit,
+	}
+	return true
+}
+
+// Parse the productions:
+// block_node_or_indentless_sequence    ::=
+//                          ALIAS
+//                          *****
+//                          | properties (block_content | indentless_block_sequence)?
+//                            **********  *
+//                          | block_content | indentless_block_sequence
+//                            *
+// block_node           ::= ALIAS
+//                          *****
+//                          | properties block_content?
+//                            ********** *
+//                          | block_content
+//                            *
+// flow_node            ::= ALIAS
+//                          *****
+//                          | properties flow_content?
+//                            ********** *
+//                          | flow_content
+//                            *
+// properties           ::= TAG ANCHOR? | ANCHOR TAG?
+//                          *************************
+// block_content        ::= block_collection | flow_collection | SCALAR
+//                                                               ******
+// flow_content         ::= flow_collection | SCALAR
+//                                            ******
+func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool {
+	//defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)()
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ == yaml_ALIAS_TOKEN {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+		*event = yaml_event_t{
+			typ:        yaml_ALIAS_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+			anchor:     token.value,
+		}
+		skip_token(parser)
+		return true
+	}
+
+	start_mark := token.start_mark
+	end_mark := token.start_mark
+
+	var tag_token bool
+	var tag_handle, tag_suffix, anchor []byte
+	var tag_mark yaml_mark_t
+	if token.typ == yaml_ANCHOR_TOKEN {
+		anchor = token.value
+		start_mark = token.start_mark
+		end_mark = token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ == yaml_TAG_TOKEN {
+			tag_token = true
+			tag_handle = token.value
+			tag_suffix = token.suffix
+			tag_mark = token.start_mark
+			end_mark = token.end_mark
+			skip_token(parser)
+			token = peek_token(parser)
+			if token == nil {
+				return false
+			}
+		}
+	} else if token.typ == yaml_TAG_TOKEN {
+		tag_token = true
+		tag_handle = token.value
+		tag_suffix = token.suffix
+		start_mark = token.start_mark
+		tag_mark = token.start_mark
+		end_mark = token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ == yaml_ANCHOR_TOKEN {
+			anchor = token.value
+			end_mark = token.end_mark
+			skip_token(parser)
+			token = peek_token(parser)
+			if token == nil {
+				return false
+			}
+		}
+	}
+
+	var tag []byte
+	if tag_token {
+		if len(tag_handle) == 0 {
+			tag = tag_suffix
+			tag_suffix = nil
+		} else {
+			for i := range parser.tag_directives {
+				if bytes.Equal(parser.tag_directives[i].handle, tag_handle) {
+					tag = append([]byte(nil), parser.tag_directives[i].prefix...)
+					tag = append(tag, tag_suffix...)
+					break
+				}
+			}
+			if len(tag) == 0 {
+				yaml_parser_set_parser_error_context(parser,
+					"while parsing a node", start_mark,
+					"found undefined tag handle", tag_mark)
+				return false
+			}
+		}
+	}
+
+	implicit := len(tag) == 0
+	if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN {
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_SEQUENCE_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
+		}
+		return true
+	}
+	if token.typ == yaml_SCALAR_TOKEN {
+		var plain_implicit, quoted_implicit bool
+		end_mark = token.end_mark
+		if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') {
+			plain_implicit = true
+		} else if len(tag) == 0 {
+			quoted_implicit = true
+		}
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+
+		*event = yaml_event_t{
+			typ:             yaml_SCALAR_EVENT,
+			start_mark:      start_mark,
+			end_mark:        end_mark,
+			anchor:          anchor,
+			tag:             tag,
+			value:           token.value,
+			implicit:        plain_implicit,
+			quoted_implicit: quoted_implicit,
+			style:           yaml_style_t(token.style),
+		}
+		skip_token(parser)
+		return true
+	}
+	if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN {
+		// [Go] Some of the events below can be merged as they differ only on style.
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_SEQUENCE_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_FLOW_SEQUENCE_STYLE),
+		}
+		return true
+	}
+	if token.typ == yaml_FLOW_MAPPING_START_TOKEN {
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_MAPPING_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_FLOW_MAPPING_STYLE),
+		}
+		return true
+	}
+	if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN {
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_SEQUENCE_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
+		}
+		return true
+	}
+	if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN {
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_MAPPING_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_BLOCK_MAPPING_STYLE),
+		}
+		return true
+	}
+	if len(anchor) > 0 || len(tag) > 0 {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+
+		*event = yaml_event_t{
+			typ:             yaml_SCALAR_EVENT,
+			start_mark:      start_mark,
+			end_mark:        end_mark,
+			anchor:          anchor,
+			tag:             tag,
+			implicit:        implicit,
+			quoted_implicit: false,
+			style:           yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
+		}
+		return true
+	}
+
+	context := "while parsing a flow node"
+	if block {
+		context = "while parsing a block node"
+	}
+	yaml_parser_set_parser_error_context(parser, context, start_mark,
+		"did not find expected node content", token.start_mark)
+	return false
+}
+
+// Parse the productions:
+// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+//                    ********************  *********** *             *********
+//
+func yaml_parser_parse_block_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+	if first {
+		token := peek_token(parser)
+		parser.marks = append(parser.marks, token.start_mark)
+		skip_token(parser)
+	}
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ == yaml_BLOCK_ENTRY_TOKEN {
+		mark := token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)
+			return yaml_parser_parse_node(parser, event, true, false)
+		} else {
+			parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE
+			return yaml_parser_process_empty_scalar(parser, event, mark)
+		}
+	}
+	if token.typ == yaml_BLOCK_END_TOKEN {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+		parser.marks = parser.marks[:len(parser.marks)-1]
+
+		*event = yaml_event_t{
+			typ:        yaml_SEQUENCE_END_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+		}
+
+		skip_token(parser)
+		return true
+	}
+
+	context_mark := parser.marks[len(parser.marks)-1]
+	parser.marks = parser.marks[:len(parser.marks)-1]
+	return yaml_parser_set_parser_error_context(parser,
+		"while parsing a block collection", context_mark,
+		"did not find expected '-' indicator", token.start_mark)
+}
+
+// Parse the productions:
+// indentless_sequence  ::= (BLOCK-ENTRY block_node?)+
+//                           *********** *
+func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ == yaml_BLOCK_ENTRY_TOKEN {
+		mark := token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_BLOCK_ENTRY_TOKEN &&
+			token.typ != yaml_KEY_TOKEN &&
+			token.typ != yaml_VALUE_TOKEN &&
+			token.typ != yaml_BLOCK_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)
+			return yaml_parser_parse_node(parser, event, true, false)
+		}
+		parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
+		return yaml_parser_process_empty_scalar(parser, event, mark)
+	}
+	parser.state = parser.states[len(parser.states)-1]
+	parser.states = parser.states[:len(parser.states)-1]
+
+	*event = yaml_event_t{
+		typ:        yaml_SEQUENCE_END_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.start_mark, // [Go] Shouldn't this be token.end_mark?
+	}
+	return true
+}
+
+// Parse the productions:
+// block_mapping        ::= BLOCK-MAPPING_START
+//                          *******************
+//                          ((KEY block_node_or_indentless_sequence?)?
+//                            *** *
+//                          (VALUE block_node_or_indentless_sequence?)?)*
+//
+//                          BLOCK-END
+//                          *********
+//
+func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+	if first {
+		token := peek_token(parser)
+		parser.marks = append(parser.marks, token.start_mark)
+		skip_token(parser)
+	}
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ == yaml_KEY_TOKEN {
+		mark := token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_KEY_TOKEN &&
+			token.typ != yaml_VALUE_TOKEN &&
+			token.typ != yaml_BLOCK_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE)
+			return yaml_parser_parse_node(parser, event, true, true)
+		} else {
+			parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE
+			return yaml_parser_process_empty_scalar(parser, event, mark)
+		}
+	} else if token.typ == yaml_BLOCK_END_TOKEN {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+		parser.marks = parser.marks[:len(parser.marks)-1]
+		*event = yaml_event_t{
+			typ:        yaml_MAPPING_END_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+		}
+		skip_token(parser)
+		return true
+	}
+
+	context_mark := parser.marks[len(parser.marks)-1]
+	parser.marks = parser.marks[:len(parser.marks)-1]
+	return yaml_parser_set_parser_error_context(parser,
+		"while parsing a block mapping", context_mark,
+		"did not find expected key", token.start_mark)
+}
+
+// Parse the productions:
+// block_mapping        ::= BLOCK-MAPPING_START
+//
+//                          ((KEY block_node_or_indentless_sequence?)?
+//
+//                          (VALUE block_node_or_indentless_sequence?)?)*
+//                           ***** *
+//                          BLOCK-END
+//
+//
+func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ == yaml_VALUE_TOKEN {
+		mark := token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_KEY_TOKEN &&
+			token.typ != yaml_VALUE_TOKEN &&
+			token.typ != yaml_BLOCK_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_KEY_STATE)
+			return yaml_parser_parse_node(parser, event, true, true)
+		}
+		parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
+		return yaml_parser_process_empty_scalar(parser, event, mark)
+	}
+	parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
+	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Parse the productions:
+// flow_sequence        ::= FLOW-SEQUENCE-START
+//                          *******************
+//                          (flow_sequence_entry FLOW-ENTRY)*
+//                           *                   **********
+//                          flow_sequence_entry?
+//                          *
+//                          FLOW-SEQUENCE-END
+//                          *****************
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                          *
+//
+func yaml_parser_parse_flow_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+	if first {
+		token := peek_token(parser)
+		parser.marks = append(parser.marks, token.start_mark)
+		skip_token(parser)
+	}
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+		if !first {
+			if token.typ == yaml_FLOW_ENTRY_TOKEN {
+				skip_token(parser)
+				token = peek_token(parser)
+				if token == nil {
+					return false
+				}
+			} else {
+				context_mark := parser.marks[len(parser.marks)-1]
+				parser.marks = parser.marks[:len(parser.marks)-1]
+				return yaml_parser_set_parser_error_context(parser,
+					"while parsing a flow sequence", context_mark,
+					"did not find expected ',' or ']'", token.start_mark)
+			}
+		}
+
+		if token.typ == yaml_KEY_TOKEN {
+			parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE
+			*event = yaml_event_t{
+				typ:        yaml_MAPPING_START_EVENT,
+				start_mark: token.start_mark,
+				end_mark:   token.end_mark,
+				implicit:   true,
+				style:      yaml_style_t(yaml_FLOW_MAPPING_STYLE),
+			}
+			skip_token(parser)
+			return true
+		} else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE)
+			return yaml_parser_parse_node(parser, event, false, false)
+		}
+	}
+
+	parser.state = parser.states[len(parser.states)-1]
+	parser.states = parser.states[:len(parser.states)-1]
+	parser.marks = parser.marks[:len(parser.marks)-1]
+
+	*event = yaml_event_t{
+		typ:        yaml_SEQUENCE_END_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.end_mark,
+	}
+
+	skip_token(parser)
+	return true
+}
+
+//
+// Parse the productions:
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                                      *** *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ != yaml_VALUE_TOKEN &&
+		token.typ != yaml_FLOW_ENTRY_TOKEN &&
+		token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+		parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)
+		return yaml_parser_parse_node(parser, event, false, false)
+	}
+	mark := token.end_mark
+	skip_token(parser)
+	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE
+	return yaml_parser_process_empty_scalar(parser, event, mark)
+}
+
+// Parse the productions:
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                                                      ***** *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ == yaml_VALUE_TOKEN {
+		skip_token(parser)
+		token := peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)
+			return yaml_parser_parse_node(parser, event, false, false)
+		}
+	}
+	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE
+	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Parse the productions:
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                                                                      *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE
+	*event = yaml_event_t{
+		typ:        yaml_MAPPING_END_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.start_mark, // [Go] Shouldn't this be end_mark?
+	}
+	return true
+}
+
+// Parse the productions:
+// flow_mapping         ::= FLOW-MAPPING-START
+//                          ******************
+//                          (flow_mapping_entry FLOW-ENTRY)*
+//                           *                  **********
+//                          flow_mapping_entry?
+//                          ******************
+//                          FLOW-MAPPING-END
+//                          ****************
+// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                          *           *** *
+//
+func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+	if first {
+		token := peek_token(parser)
+		parser.marks = append(parser.marks, token.start_mark)
+		skip_token(parser)
+	}
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+		if !first {
+			if token.typ == yaml_FLOW_ENTRY_TOKEN {
+				skip_token(parser)
+				token = peek_token(parser)
+				if token == nil {
+					return false
+				}
+			} else {
+				context_mark := parser.marks[len(parser.marks)-1]
+				parser.marks = parser.marks[:len(parser.marks)-1]
+				return yaml_parser_set_parser_error_context(parser,
+					"while parsing a flow mapping", context_mark,
+					"did not find expected ',' or '}'", token.start_mark)
+			}
+		}
+
+		if token.typ == yaml_KEY_TOKEN {
+			skip_token(parser)
+			token = peek_token(parser)
+			if token == nil {
+				return false
+			}
+			if token.typ != yaml_VALUE_TOKEN &&
+				token.typ != yaml_FLOW_ENTRY_TOKEN &&
+				token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+				parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE)
+				return yaml_parser_parse_node(parser, event, false, false)
+			} else {
+				parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE
+				return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+			}
+		} else if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)
+			return yaml_parser_parse_node(parser, event, false, false)
+		}
+	}
+
+	parser.state = parser.states[len(parser.states)-1]
+	parser.states = parser.states[:len(parser.states)-1]
+	parser.marks = parser.marks[:len(parser.marks)-1]
+	*event = yaml_event_t{
+		typ:        yaml_MAPPING_END_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.end_mark,
+	}
+	skip_token(parser)
+	return true
+}
+
+// Parse the productions:
+// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                                   *                  ***** *
+//
+func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if empty {
+		parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
+		return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+	}
+	if token.typ == yaml_VALUE_TOKEN {
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE)
+			return yaml_parser_parse_node(parser, event, false, false)
+		}
+	}
+	parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
+	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Generate an empty scalar event.
+func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool {
+	*event = yaml_event_t{
+		typ:        yaml_SCALAR_EVENT,
+		start_mark: mark,
+		end_mark:   mark,
+		value:      nil, // Empty
+		implicit:   true,
+		style:      yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
+	}
+	return true
+}
+
+var default_tag_directives = []yaml_tag_directive_t{
+	{[]byte("!"), []byte("!")},
+	{[]byte("!!"), []byte("tag:yaml.org,2002:")},
+}
+
+// Parse directives.
+func yaml_parser_process_directives(parser *yaml_parser_t,
+	version_directive_ref **yaml_version_directive_t,
+	tag_directives_ref *[]yaml_tag_directive_t) bool {
+
+	var version_directive *yaml_version_directive_t
+	var tag_directives []yaml_tag_directive_t
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN {
+		if token.typ == yaml_VERSION_DIRECTIVE_TOKEN {
+			if version_directive != nil {
+				yaml_parser_set_parser_error(parser,
+					"found duplicate %YAML directive", token.start_mark)
+				return false
+			}
+			if token.major != 1 || token.minor != 1 {
+				yaml_parser_set_parser_error(parser,
+					"found incompatible YAML document", token.start_mark)
+				return false
+			}
+			version_directive = &yaml_version_directive_t{
+				major: token.major,
+				minor: token.minor,
+			}
+		} else if token.typ == yaml_TAG_DIRECTIVE_TOKEN {
+			value := yaml_tag_directive_t{
+				handle: token.value,
+				prefix: token.prefix,
+			}
+			if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) {
+				return false
+			}
+			tag_directives = append(tag_directives, value)
+		}
+
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+	}
+
+	for i := range default_tag_directives {
+		if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) {
+			return false
+		}
+	}
+
+	if version_directive_ref != nil {
+		*version_directive_ref = version_directive
+	}
+	if tag_directives_ref != nil {
+		*tag_directives_ref = tag_directives
+	}
+	return true
+}
+
+// Append a tag directive to the directives stack.
+func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool {
+	for i := range parser.tag_directives {
+		if bytes.Equal(value.handle, parser.tag_directives[i].handle) {
+			if allow_duplicates {
+				return true
+			}
+			return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark)
+		}
+	}
+
+	// [Go] I suspect the copy is unnecessary. This was likely done
+	// because there was no way to track ownership of the data.
+	value_copy := yaml_tag_directive_t{
+		handle: make([]byte, len(value.handle)),
+		prefix: make([]byte, len(value.prefix)),
+	}
+	copy(value_copy.handle, value.handle)
+	copy(value_copy.prefix, value.prefix)
+	parser.tag_directives = append(parser.tag_directives, value_copy)
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/readerc.go b/vendor/gopkg.in/yaml.v2/readerc.go
new file mode 100644
index 0000000..d5fb097
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/readerc.go
@@ -0,0 +1,391 @@
+package yaml
+
+import (
+	"io"
+)
+
+// Set the reader error and return 0.
+func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
+	parser.error = yaml_READER_ERROR
+	parser.problem = problem
+	parser.problem_offset = offset
+	parser.problem_value = value
+	return false
+}
+
+// Byte order marks.
+const (
+	bom_UTF8    = "\xef\xbb\xbf"
+	bom_UTF16LE = "\xff\xfe"
+	bom_UTF16BE = "\xfe\xff"
+)
+
+// Determine the input stream encoding by checking the BOM symbol. If no BOM is
+// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
+func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
+	// Ensure that we had enough bytes in the raw buffer.
+	for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
+		if !yaml_parser_update_raw_buffer(parser) {
+			return false
+		}
+	}
+
+	// Determine the encoding.
+	buf := parser.raw_buffer
+	pos := parser.raw_buffer_pos
+	avail := len(buf) - pos
+	if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
+		parser.encoding = yaml_UTF16LE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
+		parser.encoding = yaml_UTF16BE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
+		parser.encoding = yaml_UTF8_ENCODING
+		parser.raw_buffer_pos += 3
+		parser.offset += 3
+	} else {
+		parser.encoding = yaml_UTF8_ENCODING
+	}
+	return true
+}
+
+// Update the raw buffer.
+func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
+	size_read := 0
+
+	// Return if the raw buffer is full.
+	if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
+		return true
+	}
+
+	// Return on EOF.
+	if parser.eof {
+		return true
+	}
+
+	// Move the remaining bytes in the raw buffer to the beginning.
+	if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
+		copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
+	}
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
+	parser.raw_buffer_pos = 0
+
+	// Call the read handler to fill the buffer.
+	size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
+	if err == io.EOF {
+		parser.eof = true
+	} else if err != nil {
+		return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
+	}
+	return true
+}
+
+// Ensure that the buffer contains at least `length` characters.
+// Return true on success, false on failure.
+//
+// The length is supposed to be significantly less that the buffer size.
+func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
+	if parser.read_handler == nil {
+		panic("read handler must be set")
+	}
+
+	// If the EOF flag is set and the raw buffer is empty, do nothing.
+	if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
+		return true
+	}
+
+	// Return if the buffer contains enough characters.
+	if parser.unread >= length {
+		return true
+	}
+
+	// Determine the input encoding if it is not known yet.
+	if parser.encoding == yaml_ANY_ENCODING {
+		if !yaml_parser_determine_encoding(parser) {
+			return false
+		}
+	}
+
+	// Move the unread characters to the beginning of the buffer.
+	buffer_len := len(parser.buffer)
+	if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
+		copy(parser.buffer, parser.buffer[parser.buffer_pos:])
+		buffer_len -= parser.buffer_pos
+		parser.buffer_pos = 0
+	} else if parser.buffer_pos == buffer_len {
+		buffer_len = 0
+		parser.buffer_pos = 0
+	}
+
+	// Open the whole buffer for writing, and cut it before returning.
+	parser.buffer = parser.buffer[:cap(parser.buffer)]
+
+	// Fill the buffer until it has enough characters.
+	first := true
+	for parser.unread < length {
+
+		// Fill the raw buffer if necessary.
+		if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
+			if !yaml_parser_update_raw_buffer(parser) {
+				parser.buffer = parser.buffer[:buffer_len]
+				return false
+			}
+		}
+		first = false
+
+		// Decode the raw buffer.
+	inner:
+		for parser.raw_buffer_pos != len(parser.raw_buffer) {
+			var value rune
+			var width int
+
+			raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
+
+			// Decode the next character.
+			switch parser.encoding {
+			case yaml_UTF8_ENCODING:
+				// Decode a UTF-8 character.  Check RFC 3629
+				// (http://www.ietf.org/rfc/rfc3629.txt) for more details.
+				//
+				// The following table (taken from the RFC) is used for
+				// decoding.
+				//
+				//    Char. number range |        UTF-8 octet sequence
+				//      (hexadecimal)    |              (binary)
+				//   --------------------+------------------------------------
+				//   0000 0000-0000 007F | 0xxxxxxx
+				//   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
+				//   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
+				//   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				//
+				// Additionally, the characters in the range 0xD800-0xDFFF
+				// are prohibited as they are reserved for use with UTF-16
+				// surrogate pairs.
+
+				// Determine the length of the UTF-8 sequence.
+				octet := parser.raw_buffer[parser.raw_buffer_pos]
+				switch {
+				case octet&0x80 == 0x00:
+					width = 1
+				case octet&0xE0 == 0xC0:
+					width = 2
+				case octet&0xF0 == 0xE0:
+					width = 3
+				case octet&0xF8 == 0xF0:
+					width = 4
+				default:
+					// The leading octet is invalid.
+					return yaml_parser_set_reader_error(parser,
+						"invalid leading UTF-8 octet",
+						parser.offset, int(octet))
+				}
+
+				// Check if the raw buffer contains an incomplete character.
+				if width > raw_unread {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-8 octet sequence",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Decode the leading octet.
+				switch {
+				case octet&0x80 == 0x00:
+					value = rune(octet & 0x7F)
+				case octet&0xE0 == 0xC0:
+					value = rune(octet & 0x1F)
+				case octet&0xF0 == 0xE0:
+					value = rune(octet & 0x0F)
+				case octet&0xF8 == 0xF0:
+					value = rune(octet & 0x07)
+				default:
+					value = 0
+				}
+
+				// Check and decode the trailing octets.
+				for k := 1; k < width; k++ {
+					octet = parser.raw_buffer[parser.raw_buffer_pos+k]
+
+					// Check if the octet is valid.
+					if (octet & 0xC0) != 0x80 {
+						return yaml_parser_set_reader_error(parser,
+							"invalid trailing UTF-8 octet",
+							parser.offset+k, int(octet))
+					}
+
+					// Decode the octet.
+					value = (value << 6) + rune(octet&0x3F)
+				}
+
+				// Check the length of the sequence against the value.
+				switch {
+				case width == 1:
+				case width == 2 && value >= 0x80:
+				case width == 3 && value >= 0x800:
+				case width == 4 && value >= 0x10000:
+				default:
+					return yaml_parser_set_reader_error(parser,
+						"invalid length of a UTF-8 sequence",
+						parser.offset, -1)
+				}
+
+				// Check the range of the value.
+				if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
+					return yaml_parser_set_reader_error(parser,
+						"invalid Unicode character",
+						parser.offset, int(value))
+				}
+
+			case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
+				var low, high int
+				if parser.encoding == yaml_UTF16LE_ENCODING {
+					low, high = 0, 1
+				} else {
+					high, low = 1, 0
+				}
+
+				// The UTF-16 encoding is not as simple as one might
+				// naively think.  Check RFC 2781
+				// (http://www.ietf.org/rfc/rfc2781.txt).
+				//
+				// Normally, two subsequent bytes describe a Unicode
+				// character.  However a special technique (called a
+				// surrogate pair) is used for specifying character
+				// values larger than 0xFFFF.
+				//
+				// A surrogate pair consists of two pseudo-characters:
+				//      high surrogate area (0xD800-0xDBFF)
+				//      low surrogate area (0xDC00-0xDFFF)
+				//
+				// The following formulas are used for decoding
+				// and encoding characters using surrogate pairs:
+				//
+				//  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
+				//  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
+				//  W1 = 110110yyyyyyyyyy
+				//  W2 = 110111xxxxxxxxxx
+				//
+				// where U is the character value, W1 is the high surrogate
+				// area, W2 is the low surrogate area.
+
+				// Check for incomplete UTF-16 character.
+				if raw_unread < 2 {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-16 character",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Get the character.
+				value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
+					(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
+
+				// Check for unexpected low surrogate area.
+				if value&0xFC00 == 0xDC00 {
+					return yaml_parser_set_reader_error(parser,
+						"unexpected low surrogate area",
+						parser.offset, int(value))
+				}
+
+				// Check for a high surrogate area.
+				if value&0xFC00 == 0xD800 {
+					width = 4
+
+					// Check for incomplete surrogate pair.
+					if raw_unread < 4 {
+						if parser.eof {
+							return yaml_parser_set_reader_error(parser,
+								"incomplete UTF-16 surrogate pair",
+								parser.offset, -1)
+						}
+						break inner
+					}
+
+					// Get the next character.
+					value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
+						(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
+
+					// Check for a low surrogate area.
+					if value2&0xFC00 != 0xDC00 {
+						return yaml_parser_set_reader_error(parser,
+							"expected low surrogate area",
+							parser.offset+2, int(value2))
+					}
+
+					// Generate the value of the surrogate pair.
+					value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
+				} else {
+					width = 2
+				}
+
+			default:
+				panic("impossible")
+			}
+
+			// Check if the character is in the allowed range:
+			//      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)
+			//      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)
+			//      | [#x10000-#x10FFFF]                        (32 bit)
+			switch {
+			case value == 0x09:
+			case value == 0x0A:
+			case value == 0x0D:
+			case value >= 0x20 && value <= 0x7E:
+			case value == 0x85:
+			case value >= 0xA0 && value <= 0xD7FF:
+			case value >= 0xE000 && value <= 0xFFFD:
+			case value >= 0x10000 && value <= 0x10FFFF:
+			default:
+				return yaml_parser_set_reader_error(parser,
+					"control characters are not allowed",
+					parser.offset, int(value))
+			}
+
+			// Move the raw pointers.
+			parser.raw_buffer_pos += width
+			parser.offset += width
+
+			// Finally put the character into the buffer.
+			if value <= 0x7F {
+				// 0000 0000-0000 007F . 0xxxxxxx
+				parser.buffer[buffer_len+0] = byte(value)
+			} else if value <= 0x7FF {
+				// 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
+				parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
+			} else if value <= 0xFFFF {
+				// 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
+			} else {
+				// 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
+			}
+			buffer_len += width
+
+			parser.unread++
+		}
+
+		// On EOF, put NUL into the buffer and return.
+		if parser.eof {
+			parser.buffer[buffer_len] = 0
+			buffer_len++
+			parser.unread++
+			break
+		}
+	}
+	parser.buffer = parser.buffer[:buffer_len]
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/resolve.go b/vendor/gopkg.in/yaml.v2/resolve.go
new file mode 100644
index 0000000..93a8632
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/resolve.go
@@ -0,0 +1,203 @@
+package yaml
+
+import (
+	"encoding/base64"
+	"math"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+type resolveMapItem struct {
+	value interface{}
+	tag   string
+}
+
+var resolveTable = make([]byte, 256)
+var resolveMap = make(map[string]resolveMapItem)
+
+func init() {
+	t := resolveTable
+	t[int('+')] = 'S' // Sign
+	t[int('-')] = 'S'
+	for _, c := range "0123456789" {
+		t[int(c)] = 'D' // Digit
+	}
+	for _, c := range "yYnNtTfFoO~" {
+		t[int(c)] = 'M' // In map
+	}
+	t[int('.')] = '.' // Float (potentially in map)
+
+	var resolveMapList = []struct {
+		v   interface{}
+		tag string
+		l   []string
+	}{
+		{true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
+		{true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
+		{true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
+		{false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
+		{false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
+		{false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
+		{nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
+		{math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
+		{math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
+		{"<<", yaml_MERGE_TAG, []string{"<<"}},
+	}
+
+	m := resolveMap
+	for _, item := range resolveMapList {
+		for _, s := range item.l {
+			m[s] = resolveMapItem{item.v, item.tag}
+		}
+	}
+}
+
+const longTagPrefix = "tag:yaml.org,2002:"
+
+func shortTag(tag string) string {
+	// TODO This can easily be made faster and produce less garbage.
+	if strings.HasPrefix(tag, longTagPrefix) {
+		return "!!" + tag[len(longTagPrefix):]
+	}
+	return tag
+}
+
+func longTag(tag string) string {
+	if strings.HasPrefix(tag, "!!") {
+		return longTagPrefix + tag[2:]
+	}
+	return tag
+}
+
+func resolvableTag(tag string) bool {
+	switch tag {
+	case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG:
+		return true
+	}
+	return false
+}
+
+func resolve(tag string, in string) (rtag string, out interface{}) {
+	if !resolvableTag(tag) {
+		return tag, in
+	}
+
+	defer func() {
+		switch tag {
+		case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
+			return
+		}
+		failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag))
+	}()
+
+	// Any data is accepted as a !!str or !!binary.
+	// Otherwise, the prefix is enough of a hint about what it might be.
+	hint := byte('N')
+	if in != "" {
+		hint = resolveTable[in[0]]
+	}
+	if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
+		// Handle things we can lookup in a map.
+		if item, ok := resolveMap[in]; ok {
+			return item.tag, item.value
+		}
+
+		// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
+		// are purposefully unsupported here. They're still quoted on
+		// the way out for compatibility with other parser, though.
+
+		switch hint {
+		case 'M':
+			// We've already checked the map above.
+
+		case '.':
+			// Not in the map, so maybe a normal float.
+			floatv, err := strconv.ParseFloat(in, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+
+		case 'D', 'S':
+			// Int, float, or timestamp.
+			plain := strings.Replace(in, "_", "", -1)
+			intv, err := strconv.ParseInt(plain, 0, 64)
+			if err == nil {
+				if intv == int64(int(intv)) {
+					return yaml_INT_TAG, int(intv)
+				} else {
+					return yaml_INT_TAG, intv
+				}
+			}
+			uintv, err := strconv.ParseUint(plain, 0, 64)
+			if err == nil {
+				return yaml_INT_TAG, uintv
+			}
+			floatv, err := strconv.ParseFloat(plain, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+			if strings.HasPrefix(plain, "0b") {
+				intv, err := strconv.ParseInt(plain[2:], 2, 64)
+				if err == nil {
+					if intv == int64(int(intv)) {
+						return yaml_INT_TAG, int(intv)
+					} else {
+						return yaml_INT_TAG, intv
+					}
+				}
+				uintv, err := strconv.ParseUint(plain[2:], 2, 64)
+				if err == nil {
+					return yaml_INT_TAG, uintv
+				}
+			} else if strings.HasPrefix(plain, "-0b") {
+				intv, err := strconv.ParseInt(plain[3:], 2, 64)
+				if err == nil {
+					if intv == int64(int(intv)) {
+						return yaml_INT_TAG, -int(intv)
+					} else {
+						return yaml_INT_TAG, -intv
+					}
+				}
+			}
+			// XXX Handle timestamps here.
+
+		default:
+			panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
+		}
+	}
+	if tag == yaml_BINARY_TAG {
+		return yaml_BINARY_TAG, in
+	}
+	if utf8.ValidString(in) {
+		return yaml_STR_TAG, in
+	}
+	return yaml_BINARY_TAG, encodeBase64(in)
+}
+
+// encodeBase64 encodes s as base64 that is broken up into multiple lines
+// as appropriate for the resulting length.
+func encodeBase64(s string) string {
+	const lineLen = 70
+	encLen := base64.StdEncoding.EncodedLen(len(s))
+	lines := encLen/lineLen + 1
+	buf := make([]byte, encLen*2+lines)
+	in := buf[0:encLen]
+	out := buf[encLen:]
+	base64.StdEncoding.Encode(in, []byte(s))
+	k := 0
+	for i := 0; i < len(in); i += lineLen {
+		j := i + lineLen
+		if j > len(in) {
+			j = len(in)
+		}
+		k += copy(out[k:], in[i:j])
+		if lines > 1 {
+			out[k] = '\n'
+			k++
+		}
+	}
+	return string(out[:k])
+}
diff --git a/vendor/gopkg.in/yaml.v2/scannerc.go b/vendor/gopkg.in/yaml.v2/scannerc.go
new file mode 100644
index 0000000..d97d76f
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/scannerc.go
@@ -0,0 +1,2710 @@
+package yaml
+
+import (
+	"bytes"
+	"fmt"
+)
+
+// Introduction
+// ************
+//
+// The following notes assume that you are familiar with the YAML specification
+// (http://yaml.org/spec/cvs/current.html).  We mostly follow it, although in
+// some cases we are less restrictive that it requires.
+//
+// The process of transforming a YAML stream into a sequence of events is
+// divided on two steps: Scanning and Parsing.
+//
+// The Scanner transforms the input stream into a sequence of tokens, while the
+// parser transform the sequence of tokens produced by the Scanner into a
+// sequence of parsing events.
+//
+// The Scanner is rather clever and complicated. The Parser, on the contrary,
+// is a straightforward implementation of a recursive-descendant parser (or,
+// LL(1) parser, as it is usually called).
+//
+// Actually there are two issues of Scanning that might be called "clever", the
+// rest is quite straightforward.  The issues are "block collection start" and
+// "simple keys".  Both issues are explained below in details.
+//
+// Here the Scanning step is explained and implemented.  We start with the list
+// of all the tokens produced by the Scanner together with short descriptions.
+//
+// Now, tokens:
+//
+//      STREAM-START(encoding)          # The stream start.
+//      STREAM-END                      # The stream end.
+//      VERSION-DIRECTIVE(major,minor)  # The '%YAML' directive.
+//      TAG-DIRECTIVE(handle,prefix)    # The '%TAG' directive.
+//      DOCUMENT-START                  # '---'
+//      DOCUMENT-END                    # '...'
+//      BLOCK-SEQUENCE-START            # Indentation increase denoting a block
+//      BLOCK-MAPPING-START             # sequence or a block mapping.
+//      BLOCK-END                       # Indentation decrease.
+//      FLOW-SEQUENCE-START             # '['
+//      FLOW-SEQUENCE-END               # ']'
+//      BLOCK-SEQUENCE-START            # '{'
+//      BLOCK-SEQUENCE-END              # '}'
+//      BLOCK-ENTRY                     # '-'
+//      FLOW-ENTRY                      # ','
+//      KEY                             # '?' or nothing (simple keys).
+//      VALUE                           # ':'
+//      ALIAS(anchor)                   # '*anchor'
+//      ANCHOR(anchor)                  # '&anchor'
+//      TAG(handle,suffix)              # '!handle!suffix'
+//      SCALAR(value,style)             # A scalar.
+//
+// The following two tokens are "virtual" tokens denoting the beginning and the
+// end of the stream:
+//
+//      STREAM-START(encoding)
+//      STREAM-END
+//
+// We pass the information about the input stream encoding with the
+// STREAM-START token.
+//
+// The next two tokens are responsible for tags:
+//
+//      VERSION-DIRECTIVE(major,minor)
+//      TAG-DIRECTIVE(handle,prefix)
+//
+// Example:
+//
+//      %YAML   1.1
+//      %TAG    !   !foo
+//      %TAG    !yaml!  tag:yaml.org,2002:
+//      ---
+//
+// The correspoding sequence of tokens:
+//
+//      STREAM-START(utf-8)
+//      VERSION-DIRECTIVE(1,1)
+//      TAG-DIRECTIVE("!","!foo")
+//      TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:")
+//      DOCUMENT-START
+//      STREAM-END
+//
+// Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole
+// line.
+//
+// The document start and end indicators are represented by:
+//
+//      DOCUMENT-START
+//      DOCUMENT-END
+//
+// Note that if a YAML stream contains an implicit document (without '---'
+// and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be
+// produced.
+//
+// In the following examples, we present whole documents together with the
+// produced tokens.
+//
+//      1. An implicit document:
+//
+//          'a scalar'
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          SCALAR("a scalar",single-quoted)
+//          STREAM-END
+//
+//      2. An explicit document:
+//
+//          ---
+//          'a scalar'
+//          ...
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          DOCUMENT-START
+//          SCALAR("a scalar",single-quoted)
+//          DOCUMENT-END
+//          STREAM-END
+//
+//      3. Several documents in a stream:
+//
+//          'a scalar'
+//          ---
+//          'another scalar'
+//          ---
+//          'yet another scalar'
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          SCALAR("a scalar",single-quoted)
+//          DOCUMENT-START
+//          SCALAR("another scalar",single-quoted)
+//          DOCUMENT-START
+//          SCALAR("yet another scalar",single-quoted)
+//          STREAM-END
+//
+// We have already introduced the SCALAR token above.  The following tokens are
+// used to describe aliases, anchors, tag, and scalars:
+//
+//      ALIAS(anchor)
+//      ANCHOR(anchor)
+//      TAG(handle,suffix)
+//      SCALAR(value,style)
+//
+// The following series of examples illustrate the usage of these tokens:
+//
+//      1. A recursive sequence:
+//
+//          &A [ *A ]
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          ANCHOR("A")
+//          FLOW-SEQUENCE-START
+//          ALIAS("A")
+//          FLOW-SEQUENCE-END
+//          STREAM-END
+//
+//      2. A tagged scalar:
+//
+//          !!float "3.14"  # A good approximation.
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          TAG("!!","float")
+//          SCALAR("3.14",double-quoted)
+//          STREAM-END
+//
+//      3. Various scalar styles:
+//
+//          --- # Implicit empty plain scalars do not produce tokens.
+//          --- a plain scalar
+//          --- 'a single-quoted scalar'
+//          --- "a double-quoted scalar"
+//          --- |-
+//            a literal scalar
+//          --- >-
+//            a folded
+//            scalar
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          DOCUMENT-START
+//          DOCUMENT-START
+//          SCALAR("a plain scalar",plain)
+//          DOCUMENT-START
+//          SCALAR("a single-quoted scalar",single-quoted)
+//          DOCUMENT-START
+//          SCALAR("a double-quoted scalar",double-quoted)
+//          DOCUMENT-START
+//          SCALAR("a literal scalar",literal)
+//          DOCUMENT-START
+//          SCALAR("a folded scalar",folded)
+//          STREAM-END
+//
+// Now it's time to review collection-related tokens. We will start with
+// flow collections:
+//
+//      FLOW-SEQUENCE-START
+//      FLOW-SEQUENCE-END
+//      FLOW-MAPPING-START
+//      FLOW-MAPPING-END
+//      FLOW-ENTRY
+//      KEY
+//      VALUE
+//
+// The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and
+// FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}'
+// correspondingly.  FLOW-ENTRY represent the ',' indicator.  Finally the
+// indicators '?' and ':', which are used for denoting mapping keys and values,
+// are represented by the KEY and VALUE tokens.
+//
+// The following examples show flow collections:
+//
+//      1. A flow sequence:
+//
+//          [item 1, item 2, item 3]
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          FLOW-SEQUENCE-START
+//          SCALAR("item 1",plain)
+//          FLOW-ENTRY
+//          SCALAR("item 2",plain)
+//          FLOW-ENTRY
+//          SCALAR("item 3",plain)
+//          FLOW-SEQUENCE-END
+//          STREAM-END
+//
+//      2. A flow mapping:
+//
+//          {
+//              a simple key: a value,  # Note that the KEY token is produced.
+//              ? a complex key: another value,
+//          }
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          FLOW-MAPPING-START
+//          KEY
+//          SCALAR("a simple key",plain)
+//          VALUE
+//          SCALAR("a value",plain)
+//          FLOW-ENTRY
+//          KEY
+//          SCALAR("a complex key",plain)
+//          VALUE
+//          SCALAR("another value",plain)
+//          FLOW-ENTRY
+//          FLOW-MAPPING-END
+//          STREAM-END
+//
+// A simple key is a key which is not denoted by the '?' indicator.  Note that
+// the Scanner still produce the KEY token whenever it encounters a simple key.
+//
+// For scanning block collections, the following tokens are used (note that we
+// repeat KEY and VALUE here):
+//
+//      BLOCK-SEQUENCE-START
+//      BLOCK-MAPPING-START
+//      BLOCK-END
+//      BLOCK-ENTRY
+//      KEY
+//      VALUE
+//
+// The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation
+// increase that precedes a block collection (cf. the INDENT token in Python).
+// The token BLOCK-END denote indentation decrease that ends a block collection
+// (cf. the DEDENT token in Python).  However YAML has some syntax pecularities
+// that makes detections of these tokens more complex.
+//
+// The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators
+// '-', '?', and ':' correspondingly.
+//
+// The following examples show how the tokens BLOCK-SEQUENCE-START,
+// BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner:
+//
+//      1. Block sequences:
+//
+//          - item 1
+//          - item 2
+//          -
+//            - item 3.1
+//            - item 3.2
+//          -
+//            key 1: value 1
+//            key 2: value 2
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 2",plain)
+//          BLOCK-ENTRY
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 3.1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 3.2",plain)
+//          BLOCK-END
+//          BLOCK-ENTRY
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("key 1",plain)
+//          VALUE
+//          SCALAR("value 1",plain)
+//          KEY
+//          SCALAR("key 2",plain)
+//          VALUE
+//          SCALAR("value 2",plain)
+//          BLOCK-END
+//          BLOCK-END
+//          STREAM-END
+//
+//      2. Block mappings:
+//
+//          a simple key: a value   # The KEY token is produced here.
+//          ? a complex key
+//          : another value
+//          a mapping:
+//            key 1: value 1
+//            key 2: value 2
+//          a sequence:
+//            - item 1
+//            - item 2
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("a simple key",plain)
+//          VALUE
+//          SCALAR("a value",plain)
+//          KEY
+//          SCALAR("a complex key",plain)
+//          VALUE
+//          SCALAR("another value",plain)
+//          KEY
+//          SCALAR("a mapping",plain)
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("key 1",plain)
+//          VALUE
+//          SCALAR("value 1",plain)
+//          KEY
+//          SCALAR("key 2",plain)
+//          VALUE
+//          SCALAR("value 2",plain)
+//          BLOCK-END
+//          KEY
+//          SCALAR("a sequence",plain)
+//          VALUE
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 2",plain)
+//          BLOCK-END
+//          BLOCK-END
+//          STREAM-END
+//
+// YAML does not always require to start a new block collection from a new
+// line.  If the current line contains only '-', '?', and ':' indicators, a new
+// block collection may start at the current line.  The following examples
+// illustrate this case:
+//
+//      1. Collections in a sequence:
+//
+//          - - item 1
+//            - item 2
+//          - key 1: value 1
+//            key 2: value 2
+//          - ? complex key
+//            : complex value
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 2",plain)
+//          BLOCK-END
+//          BLOCK-ENTRY
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("key 1",plain)
+//          VALUE
+//          SCALAR("value 1",plain)
+//          KEY
+//          SCALAR("key 2",plain)
+//          VALUE
+//          SCALAR("value 2",plain)
+//          BLOCK-END
+//          BLOCK-ENTRY
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("complex key")
+//          VALUE
+//          SCALAR("complex value")
+//          BLOCK-END
+//          BLOCK-END
+//          STREAM-END
+//
+//      2. Collections in a mapping:
+//
+//          ? a sequence
+//          : - item 1
+//            - item 2
+//          ? a mapping
+//          : key 1: value 1
+//            key 2: value 2
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("a sequence",plain)
+//          VALUE
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 2",plain)
+//          BLOCK-END
+//          KEY
+//          SCALAR("a mapping",plain)
+//          VALUE
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("key 1",plain)
+//          VALUE
+//          SCALAR("value 1",plain)
+//          KEY
+//          SCALAR("key 2",plain)
+//          VALUE
+//          SCALAR("value 2",plain)
+//          BLOCK-END
+//          BLOCK-END
+//          STREAM-END
+//
+// YAML also permits non-indented sequences if they are included into a block
+// mapping.  In this case, the token BLOCK-SEQUENCE-START is not produced:
+//
+//      key:
+//      - item 1    # BLOCK-SEQUENCE-START is NOT produced here.
+//      - item 2
+//
+// Tokens:
+//
+//      STREAM-START(utf-8)
+//      BLOCK-MAPPING-START
+//      KEY
+//      SCALAR("key",plain)
+//      VALUE
+//      BLOCK-ENTRY
+//      SCALAR("item 1",plain)
+//      BLOCK-ENTRY
+//      SCALAR("item 2",plain)
+//      BLOCK-END
+//
+
+// Ensure that the buffer contains the required number of characters.
+// Return true on success, false on failure (reader error or memory error).
+func cache(parser *yaml_parser_t, length int) bool {
+	// [Go] This was inlined: !cache(A, B) -> unread < B && !update(A, B)
+	return parser.unread >= length || yaml_parser_update_buffer(parser, length)
+}
+
+// Advance the buffer pointer.
+func skip(parser *yaml_parser_t) {
+	parser.mark.index++
+	parser.mark.column++
+	parser.unread--
+	parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
+}
+
+func skip_line(parser *yaml_parser_t) {
+	if is_crlf(parser.buffer, parser.buffer_pos) {
+		parser.mark.index += 2
+		parser.mark.column = 0
+		parser.mark.line++
+		parser.unread -= 2
+		parser.buffer_pos += 2
+	} else if is_break(parser.buffer, parser.buffer_pos) {
+		parser.mark.index++
+		parser.mark.column = 0
+		parser.mark.line++
+		parser.unread--
+		parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
+	}
+}
+
+// Copy a character to a string buffer and advance pointers.
+func read(parser *yaml_parser_t, s []byte) []byte {
+	w := width(parser.buffer[parser.buffer_pos])
+	if w == 0 {
+		panic("invalid character sequence")
+	}
+	if len(s) == 0 {
+		s = make([]byte, 0, 32)
+	}
+	if w == 1 && len(s)+w <= cap(s) {
+		s = s[:len(s)+1]
+		s[len(s)-1] = parser.buffer[parser.buffer_pos]
+		parser.buffer_pos++
+	} else {
+		s = append(s, parser.buffer[parser.buffer_pos:parser.buffer_pos+w]...)
+		parser.buffer_pos += w
+	}
+	parser.mark.index++
+	parser.mark.column++
+	parser.unread--
+	return s
+}
+
+// Copy a line break character to a string buffer and advance pointers.
+func read_line(parser *yaml_parser_t, s []byte) []byte {
+	buf := parser.buffer
+	pos := parser.buffer_pos
+	switch {
+	case buf[pos] == '\r' && buf[pos+1] == '\n':
+		// CR LF . LF
+		s = append(s, '\n')
+		parser.buffer_pos += 2
+		parser.mark.index++
+		parser.unread--
+	case buf[pos] == '\r' || buf[pos] == '\n':
+		// CR|LF . LF
+		s = append(s, '\n')
+		parser.buffer_pos += 1
+	case buf[pos] == '\xC2' && buf[pos+1] == '\x85':
+		// NEL . LF
+		s = append(s, '\n')
+		parser.buffer_pos += 2
+	case buf[pos] == '\xE2' && buf[pos+1] == '\x80' && (buf[pos+2] == '\xA8' || buf[pos+2] == '\xA9'):
+		// LS|PS . LS|PS
+		s = append(s, buf[parser.buffer_pos:pos+3]...)
+		parser.buffer_pos += 3
+	default:
+		return s
+	}
+	parser.mark.index++
+	parser.mark.column = 0
+	parser.mark.line++
+	parser.unread--
+	return s
+}
+
+// Get the next token.
+func yaml_parser_scan(parser *yaml_parser_t, token *yaml_token_t) bool {
+	// Erase the token object.
+	*token = yaml_token_t{} // [Go] Is this necessary?
+
+	// No tokens after STREAM-END or error.
+	if parser.stream_end_produced || parser.error != yaml_NO_ERROR {
+		return true
+	}
+
+	// Ensure that the tokens queue contains enough tokens.
+	if !parser.token_available {
+		if !yaml_parser_fetch_more_tokens(parser) {
+			return false
+		}
+	}
+
+	// Fetch the next token from the queue.
+	*token = parser.tokens[parser.tokens_head]
+	parser.tokens_head++
+	parser.tokens_parsed++
+	parser.token_available = false
+
+	if token.typ == yaml_STREAM_END_TOKEN {
+		parser.stream_end_produced = true
+	}
+	return true
+}
+
+// Set the scanner error and return false.
+func yaml_parser_set_scanner_error(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string) bool {
+	parser.error = yaml_SCANNER_ERROR
+	parser.context = context
+	parser.context_mark = context_mark
+	parser.problem = problem
+	parser.problem_mark = parser.mark
+	return false
+}
+
+func yaml_parser_set_scanner_tag_error(parser *yaml_parser_t, directive bool, context_mark yaml_mark_t, problem string) bool {
+	context := "while parsing a tag"
+	if directive {
+		context = "while parsing a %TAG directive"
+	}
+	return yaml_parser_set_scanner_error(parser, context, context_mark, "did not find URI escaped octet")
+}
+
+func trace(args ...interface{}) func() {
+	pargs := append([]interface{}{"+++"}, args...)
+	fmt.Println(pargs...)
+	pargs = append([]interface{}{"---"}, args...)
+	return func() { fmt.Println(pargs...) }
+}
+
+// Ensure that the tokens queue contains at least one token which can be
+// returned to the Parser.
+func yaml_parser_fetch_more_tokens(parser *yaml_parser_t) bool {
+	// While we need more tokens to fetch, do it.
+	for {
+		// Check if we really need to fetch more tokens.
+		need_more_tokens := false
+
+		if parser.tokens_head == len(parser.tokens) {
+			// Queue is empty.
+			need_more_tokens = true
+		} else {
+			// Check if any potential simple key may occupy the head position.
+			if !yaml_parser_stale_simple_keys(parser) {
+				return false
+			}
+
+			for i := range parser.simple_keys {
+				simple_key := &parser.simple_keys[i]
+				if simple_key.possible && simple_key.token_number == parser.tokens_parsed {
+					need_more_tokens = true
+					break
+				}
+			}
+		}
+
+		// We are finished.
+		if !need_more_tokens {
+			break
+		}
+		// Fetch the next token.
+		if !yaml_parser_fetch_next_token(parser) {
+			return false
+		}
+	}
+
+	parser.token_available = true
+	return true
+}
+
+// The dispatcher for token fetchers.
+func yaml_parser_fetch_next_token(parser *yaml_parser_t) bool {
+	// Ensure that the buffer is initialized.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	// Check if we just started scanning.  Fetch STREAM-START then.
+	if !parser.stream_start_produced {
+		return yaml_parser_fetch_stream_start(parser)
+	}
+
+	// Eat whitespaces and comments until we reach the next token.
+	if !yaml_parser_scan_to_next_token(parser) {
+		return false
+	}
+
+	// Remove obsolete potential simple keys.
+	if !yaml_parser_stale_simple_keys(parser) {
+		return false
+	}
+
+	// Check the indentation level against the current column.
+	if !yaml_parser_unroll_indent(parser, parser.mark.column) {
+		return false
+	}
+
+	// Ensure that the buffer contains at least 4 characters.  4 is the length
+	// of the longest indicators ('--- ' and '... ').
+	if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+		return false
+	}
+
+	// Is it the end of the stream?
+	if is_z(parser.buffer, parser.buffer_pos) {
+		return yaml_parser_fetch_stream_end(parser)
+	}
+
+	// Is it a directive?
+	if parser.mark.column == 0 && parser.buffer[parser.buffer_pos] == '%' {
+		return yaml_parser_fetch_directive(parser)
+	}
+
+	buf := parser.buffer
+	pos := parser.buffer_pos
+
+	// Is it the document start indicator?
+	if parser.mark.column == 0 && buf[pos] == '-' && buf[pos+1] == '-' && buf[pos+2] == '-' && is_blankz(buf, pos+3) {
+		return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_START_TOKEN)
+	}
+
+	// Is it the document end indicator?
+	if parser.mark.column == 0 && buf[pos] == '.' && buf[pos+1] == '.' && buf[pos+2] == '.' && is_blankz(buf, pos+3) {
+		return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_END_TOKEN)
+	}
+
+	// Is it the flow sequence start indicator?
+	if buf[pos] == '[' {
+		return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_SEQUENCE_START_TOKEN)
+	}
+
+	// Is it the flow mapping start indicator?
+	if parser.buffer[parser.buffer_pos] == '{' {
+		return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_MAPPING_START_TOKEN)
+	}
+
+	// Is it the flow sequence end indicator?
+	if parser.buffer[parser.buffer_pos] == ']' {
+		return yaml_parser_fetch_flow_collection_end(parser,
+			yaml_FLOW_SEQUENCE_END_TOKEN)
+	}
+
+	// Is it the flow mapping end indicator?
+	if parser.buffer[parser.buffer_pos] == '}' {
+		return yaml_parser_fetch_flow_collection_end(parser,
+			yaml_FLOW_MAPPING_END_TOKEN)
+	}
+
+	// Is it the flow entry indicator?
+	if parser.buffer[parser.buffer_pos] == ',' {
+		return yaml_parser_fetch_flow_entry(parser)
+	}
+
+	// Is it the block entry indicator?
+	if parser.buffer[parser.buffer_pos] == '-' && is_blankz(parser.buffer, parser.buffer_pos+1) {
+		return yaml_parser_fetch_block_entry(parser)
+	}
+
+	// Is it the key indicator?
+	if parser.buffer[parser.buffer_pos] == '?' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
+		return yaml_parser_fetch_key(parser)
+	}
+
+	// Is it the value indicator?
+	if parser.buffer[parser.buffer_pos] == ':' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
+		return yaml_parser_fetch_value(parser)
+	}
+
+	// Is it an alias?
+	if parser.buffer[parser.buffer_pos] == '*' {
+		return yaml_parser_fetch_anchor(parser, yaml_ALIAS_TOKEN)
+	}
+
+	// Is it an anchor?
+	if parser.buffer[parser.buffer_pos] == '&' {
+		return yaml_parser_fetch_anchor(parser, yaml_ANCHOR_TOKEN)
+	}
+
+	// Is it a tag?
+	if parser.buffer[parser.buffer_pos] == '!' {
+		return yaml_parser_fetch_tag(parser)
+	}
+
+	// Is it a literal scalar?
+	if parser.buffer[parser.buffer_pos] == '|' && parser.flow_level == 0 {
+		return yaml_parser_fetch_block_scalar(parser, true)
+	}
+
+	// Is it a folded scalar?
+	if parser.buffer[parser.buffer_pos] == '>' && parser.flow_level == 0 {
+		return yaml_parser_fetch_block_scalar(parser, false)
+	}
+
+	// Is it a single-quoted scalar?
+	if parser.buffer[parser.buffer_pos] == '\'' {
+		return yaml_parser_fetch_flow_scalar(parser, true)
+	}
+
+	// Is it a double-quoted scalar?
+	if parser.buffer[parser.buffer_pos] == '"' {
+		return yaml_parser_fetch_flow_scalar(parser, false)
+	}
+
+	// Is it a plain scalar?
+	//
+	// A plain scalar may start with any non-blank characters except
+	//
+	//      '-', '?', ':', ',', '[', ']', '{', '}',
+	//      '#', '&', '*', '!', '|', '>', '\'', '\"',
+	//      '%', '@', '`'.
+	//
+	// In the block context (and, for the '-' indicator, in the flow context
+	// too), it may also start with the characters
+	//
+	//      '-', '?', ':'
+	//
+	// if it is followed by a non-space character.
+	//
+	// The last rule is more restrictive than the specification requires.
+	// [Go] Make this logic more reasonable.
+	//switch parser.buffer[parser.buffer_pos] {
+	//case '-', '?', ':', ',', '?', '-', ',', ':', ']', '[', '}', '{', '&', '#', '!', '*', '>', '|', '"', '\'', '@', '%', '-', '`':
+	//}
+	if !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '-' ||
+		parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':' ||
+		parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '[' ||
+		parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
+		parser.buffer[parser.buffer_pos] == '}' || parser.buffer[parser.buffer_pos] == '#' ||
+		parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '*' ||
+		parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '|' ||
+		parser.buffer[parser.buffer_pos] == '>' || parser.buffer[parser.buffer_pos] == '\'' ||
+		parser.buffer[parser.buffer_pos] == '"' || parser.buffer[parser.buffer_pos] == '%' ||
+		parser.buffer[parser.buffer_pos] == '@' || parser.buffer[parser.buffer_pos] == '`') ||
+		(parser.buffer[parser.buffer_pos] == '-' && !is_blank(parser.buffer, parser.buffer_pos+1)) ||
+		(parser.flow_level == 0 &&
+			(parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':') &&
+			!is_blankz(parser.buffer, parser.buffer_pos+1)) {
+		return yaml_parser_fetch_plain_scalar(parser)
+	}
+
+	// If we don't determine the token type so far, it is an error.
+	return yaml_parser_set_scanner_error(parser,
+		"while scanning for the next token", parser.mark,
+		"found character that cannot start any token")
+}
+
+// Check the list of potential simple keys and remove the positions that
+// cannot contain simple keys anymore.
+func yaml_parser_stale_simple_keys(parser *yaml_parser_t) bool {
+	// Check for a potential simple key for each flow level.
+	for i := range parser.simple_keys {
+		simple_key := &parser.simple_keys[i]
+
+		// The specification requires that a simple key
+		//
+		//  - is limited to a single line,
+		//  - is shorter than 1024 characters.
+		if simple_key.possible && (simple_key.mark.line < parser.mark.line || simple_key.mark.index+1024 < parser.mark.index) {
+
+			// Check if the potential simple key to be removed is required.
+			if simple_key.required {
+				return yaml_parser_set_scanner_error(parser,
+					"while scanning a simple key", simple_key.mark,
+					"could not find expected ':'")
+			}
+			simple_key.possible = false
+		}
+	}
+	return true
+}
+
+// Check if a simple key may start at the current position and add it if
+// needed.
+func yaml_parser_save_simple_key(parser *yaml_parser_t) bool {
+	// A simple key is required at the current position if the scanner is in
+	// the block context and the current column coincides with the indentation
+	// level.
+
+	required := parser.flow_level == 0 && parser.indent == parser.mark.column
+
+	// A simple key is required only when it is the first token in the current
+	// line.  Therefore it is always allowed.  But we add a check anyway.
+	if required && !parser.simple_key_allowed {
+		panic("should not happen")
+	}
+
+	//
+	// If the current position may start a simple key, save it.
+	//
+	if parser.simple_key_allowed {
+		simple_key := yaml_simple_key_t{
+			possible:     true,
+			required:     required,
+			token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head),
+		}
+		simple_key.mark = parser.mark
+
+		if !yaml_parser_remove_simple_key(parser) {
+			return false
+		}
+		parser.simple_keys[len(parser.simple_keys)-1] = simple_key
+	}
+	return true
+}
+
+// Remove a potential simple key at the current flow level.
+func yaml_parser_remove_simple_key(parser *yaml_parser_t) bool {
+	i := len(parser.simple_keys) - 1
+	if parser.simple_keys[i].possible {
+		// If the key is required, it is an error.
+		if parser.simple_keys[i].required {
+			return yaml_parser_set_scanner_error(parser,
+				"while scanning a simple key", parser.simple_keys[i].mark,
+				"could not find expected ':'")
+		}
+	}
+	// Remove the key from the stack.
+	parser.simple_keys[i].possible = false
+	return true
+}
+
+// Increase the flow level and resize the simple key list if needed.
+func yaml_parser_increase_flow_level(parser *yaml_parser_t) bool {
+	// Reset the simple key on the next level.
+	parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
+
+	// Increase the flow level.
+	parser.flow_level++
+	return true
+}
+
+// Decrease the flow level.
+func yaml_parser_decrease_flow_level(parser *yaml_parser_t) bool {
+	if parser.flow_level > 0 {
+		parser.flow_level--
+		parser.simple_keys = parser.simple_keys[:len(parser.simple_keys)-1]
+	}
+	return true
+}
+
+// Push the current indentation level to the stack and set the new level
+// the current column is greater than the indentation level.  In this case,
+// append or insert the specified token into the token queue.
+func yaml_parser_roll_indent(parser *yaml_parser_t, column, number int, typ yaml_token_type_t, mark yaml_mark_t) bool {
+	// In the flow context, do nothing.
+	if parser.flow_level > 0 {
+		return true
+	}
+
+	if parser.indent < column {
+		// Push the current indentation level to the stack and set the new
+		// indentation level.
+		parser.indents = append(parser.indents, parser.indent)
+		parser.indent = column
+
+		// Create a token and insert it into the queue.
+		token := yaml_token_t{
+			typ:        typ,
+			start_mark: mark,
+			end_mark:   mark,
+		}
+		if number > -1 {
+			number -= parser.tokens_parsed
+		}
+		yaml_insert_token(parser, number, &token)
+	}
+	return true
+}
+
+// Pop indentation levels from the indents stack until the current level
+// becomes less or equal to the column.  For each indentation level, append
+// the BLOCK-END token.
+func yaml_parser_unroll_indent(parser *yaml_parser_t, column int) bool {
+	// In the flow context, do nothing.
+	if parser.flow_level > 0 {
+		return true
+	}
+
+	// Loop through the indentation levels in the stack.
+	for parser.indent > column {
+		// Create a token and append it to the queue.
+		token := yaml_token_t{
+			typ:        yaml_BLOCK_END_TOKEN,
+			start_mark: parser.mark,
+			end_mark:   parser.mark,
+		}
+		yaml_insert_token(parser, -1, &token)
+
+		// Pop the indentation level.
+		parser.indent = parser.indents[len(parser.indents)-1]
+		parser.indents = parser.indents[:len(parser.indents)-1]
+	}
+	return true
+}
+
+// Initialize the scanner and produce the STREAM-START token.
+func yaml_parser_fetch_stream_start(parser *yaml_parser_t) bool {
+
+	// Set the initial indentation.
+	parser.indent = -1
+
+	// Initialize the simple key stack.
+	parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
+
+	// A simple key is allowed at the beginning of the stream.
+	parser.simple_key_allowed = true
+
+	// We have started.
+	parser.stream_start_produced = true
+
+	// Create the STREAM-START token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_STREAM_START_TOKEN,
+		start_mark: parser.mark,
+		end_mark:   parser.mark,
+		encoding:   parser.encoding,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the STREAM-END token and shut down the scanner.
+func yaml_parser_fetch_stream_end(parser *yaml_parser_t) bool {
+
+	// Force new line.
+	if parser.mark.column != 0 {
+		parser.mark.column = 0
+		parser.mark.line++
+	}
+
+	// Reset the indentation level.
+	if !yaml_parser_unroll_indent(parser, -1) {
+		return false
+	}
+
+	// Reset simple keys.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	parser.simple_key_allowed = false
+
+	// Create the STREAM-END token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_STREAM_END_TOKEN,
+		start_mark: parser.mark,
+		end_mark:   parser.mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token.
+func yaml_parser_fetch_directive(parser *yaml_parser_t) bool {
+	// Reset the indentation level.
+	if !yaml_parser_unroll_indent(parser, -1) {
+		return false
+	}
+
+	// Reset simple keys.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	parser.simple_key_allowed = false
+
+	// Create the YAML-DIRECTIVE or TAG-DIRECTIVE token.
+	token := yaml_token_t{}
+	if !yaml_parser_scan_directive(parser, &token) {
+		return false
+	}
+	// Append the token to the queue.
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the DOCUMENT-START or DOCUMENT-END token.
+func yaml_parser_fetch_document_indicator(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+	// Reset the indentation level.
+	if !yaml_parser_unroll_indent(parser, -1) {
+		return false
+	}
+
+	// Reset simple keys.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	parser.simple_key_allowed = false
+
+	// Consume the token.
+	start_mark := parser.mark
+
+	skip(parser)
+	skip(parser)
+	skip(parser)
+
+	end_mark := parser.mark
+
+	// Create the DOCUMENT-START or DOCUMENT-END token.
+	token := yaml_token_t{
+		typ:        typ,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	// Append the token to the queue.
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token.
+func yaml_parser_fetch_flow_collection_start(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+	// The indicators '[' and '{' may start a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// Increase the flow level.
+	if !yaml_parser_increase_flow_level(parser) {
+		return false
+	}
+
+	// A simple key may follow the indicators '[' and '{'.
+	parser.simple_key_allowed = true
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token.
+	token := yaml_token_t{
+		typ:        typ,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	// Append the token to the queue.
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token.
+func yaml_parser_fetch_flow_collection_end(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+	// Reset any potential simple key on the current flow level.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// Decrease the flow level.
+	if !yaml_parser_decrease_flow_level(parser) {
+		return false
+	}
+
+	// No simple keys after the indicators ']' and '}'.
+	parser.simple_key_allowed = false
+
+	// Consume the token.
+
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token.
+	token := yaml_token_t{
+		typ:        typ,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	// Append the token to the queue.
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the FLOW-ENTRY token.
+func yaml_parser_fetch_flow_entry(parser *yaml_parser_t) bool {
+	// Reset any potential simple keys on the current flow level.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// Simple keys are allowed after ','.
+	parser.simple_key_allowed = true
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the FLOW-ENTRY token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_FLOW_ENTRY_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the BLOCK-ENTRY token.
+func yaml_parser_fetch_block_entry(parser *yaml_parser_t) bool {
+	// Check if the scanner is in the block context.
+	if parser.flow_level == 0 {
+		// Check if we are allowed to start a new entry.
+		if !parser.simple_key_allowed {
+			return yaml_parser_set_scanner_error(parser, "", parser.mark,
+				"block sequence entries are not allowed in this context")
+		}
+		// Add the BLOCK-SEQUENCE-START token if needed.
+		if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_SEQUENCE_START_TOKEN, parser.mark) {
+			return false
+		}
+	} else {
+		// It is an error for the '-' indicator to occur in the flow context,
+		// but we let the Parser detect and report about it because the Parser
+		// is able to point to the context.
+	}
+
+	// Reset any potential simple keys on the current flow level.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// Simple keys are allowed after '-'.
+	parser.simple_key_allowed = true
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the BLOCK-ENTRY token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_BLOCK_ENTRY_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the KEY token.
+func yaml_parser_fetch_key(parser *yaml_parser_t) bool {
+
+	// In the block context, additional checks are required.
+	if parser.flow_level == 0 {
+		// Check if we are allowed to start a new key (not nessesary simple).
+		if !parser.simple_key_allowed {
+			return yaml_parser_set_scanner_error(parser, "", parser.mark,
+				"mapping keys are not allowed in this context")
+		}
+		// Add the BLOCK-MAPPING-START token if needed.
+		if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
+			return false
+		}
+	}
+
+	// Reset any potential simple keys on the current flow level.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// Simple keys are allowed after '?' in the block context.
+	parser.simple_key_allowed = parser.flow_level == 0
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the KEY token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_KEY_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the VALUE token.
+func yaml_parser_fetch_value(parser *yaml_parser_t) bool {
+
+	simple_key := &parser.simple_keys[len(parser.simple_keys)-1]
+
+	// Have we found a simple key?
+	if simple_key.possible {
+		// Create the KEY token and insert it into the queue.
+		token := yaml_token_t{
+			typ:        yaml_KEY_TOKEN,
+			start_mark: simple_key.mark,
+			end_mark:   simple_key.mark,
+		}
+		yaml_insert_token(parser, simple_key.token_number-parser.tokens_parsed, &token)
+
+		// In the block context, we may need to add the BLOCK-MAPPING-START token.
+		if !yaml_parser_roll_indent(parser, simple_key.mark.column,
+			simple_key.token_number,
+			yaml_BLOCK_MAPPING_START_TOKEN, simple_key.mark) {
+			return false
+		}
+
+		// Remove the simple key.
+		simple_key.possible = false
+
+		// A simple key cannot follow another simple key.
+		parser.simple_key_allowed = false
+
+	} else {
+		// The ':' indicator follows a complex key.
+
+		// In the block context, extra checks are required.
+		if parser.flow_level == 0 {
+
+			// Check if we are allowed to start a complex value.
+			if !parser.simple_key_allowed {
+				return yaml_parser_set_scanner_error(parser, "", parser.mark,
+					"mapping values are not allowed in this context")
+			}
+
+			// Add the BLOCK-MAPPING-START token if needed.
+			if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
+				return false
+			}
+		}
+
+		// Simple keys after ':' are allowed in the block context.
+		parser.simple_key_allowed = parser.flow_level == 0
+	}
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the VALUE token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_VALUE_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the ALIAS or ANCHOR token.
+func yaml_parser_fetch_anchor(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+	// An anchor or an alias could be a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// A simple key cannot follow an anchor or an alias.
+	parser.simple_key_allowed = false
+
+	// Create the ALIAS or ANCHOR token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_anchor(parser, &token, typ) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the TAG token.
+func yaml_parser_fetch_tag(parser *yaml_parser_t) bool {
+	// A tag could be a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// A simple key cannot follow a tag.
+	parser.simple_key_allowed = false
+
+	// Create the TAG token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_tag(parser, &token) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens.
+func yaml_parser_fetch_block_scalar(parser *yaml_parser_t, literal bool) bool {
+	// Remove any potential simple keys.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// A simple key may follow a block scalar.
+	parser.simple_key_allowed = true
+
+	// Create the SCALAR token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_block_scalar(parser, &token, literal) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens.
+func yaml_parser_fetch_flow_scalar(parser *yaml_parser_t, single bool) bool {
+	// A plain scalar could be a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// A simple key cannot follow a flow scalar.
+	parser.simple_key_allowed = false
+
+	// Create the SCALAR token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_flow_scalar(parser, &token, single) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the SCALAR(...,plain) token.
+func yaml_parser_fetch_plain_scalar(parser *yaml_parser_t) bool {
+	// A plain scalar could be a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// A simple key cannot follow a flow scalar.
+	parser.simple_key_allowed = false
+
+	// Create the SCALAR token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_plain_scalar(parser, &token) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Eat whitespaces and comments until the next token is found.
+func yaml_parser_scan_to_next_token(parser *yaml_parser_t) bool {
+
+	// Until the next token is not found.
+	for {
+		// Allow the BOM mark to start a line.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		if parser.mark.column == 0 && is_bom(parser.buffer, parser.buffer_pos) {
+			skip(parser)
+		}
+
+		// Eat whitespaces.
+		// Tabs are allowed:
+		//  - in the flow context
+		//  - in the block context, but not at the beginning of the line or
+		//  after '-', '?', or ':' (complex value).
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+
+		for parser.buffer[parser.buffer_pos] == ' ' || ((parser.flow_level > 0 || !parser.simple_key_allowed) && parser.buffer[parser.buffer_pos] == '\t') {
+			skip(parser)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+
+		// Eat a comment until a line break.
+		if parser.buffer[parser.buffer_pos] == '#' {
+			for !is_breakz(parser.buffer, parser.buffer_pos) {
+				skip(parser)
+				if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+					return false
+				}
+			}
+		}
+
+		// If it is a line break, eat it.
+		if is_break(parser.buffer, parser.buffer_pos) {
+			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+				return false
+			}
+			skip_line(parser)
+
+			// In the block context, a new line may start a simple key.
+			if parser.flow_level == 0 {
+				parser.simple_key_allowed = true
+			}
+		} else {
+			break // We have found a token.
+		}
+	}
+
+	return true
+}
+
+// Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token.
+//
+// Scope:
+//      %YAML    1.1    # a comment \n
+//      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//      %TAG    !yaml!  tag:yaml.org,2002:  \n
+//      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//
+func yaml_parser_scan_directive(parser *yaml_parser_t, token *yaml_token_t) bool {
+	// Eat '%'.
+	start_mark := parser.mark
+	skip(parser)
+
+	// Scan the directive name.
+	var name []byte
+	if !yaml_parser_scan_directive_name(parser, start_mark, &name) {
+		return false
+	}
+
+	// Is it a YAML directive?
+	if bytes.Equal(name, []byte("YAML")) {
+		// Scan the VERSION directive value.
+		var major, minor int8
+		if !yaml_parser_scan_version_directive_value(parser, start_mark, &major, &minor) {
+			return false
+		}
+		end_mark := parser.mark
+
+		// Create a VERSION-DIRECTIVE token.
+		*token = yaml_token_t{
+			typ:        yaml_VERSION_DIRECTIVE_TOKEN,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			major:      major,
+			minor:      minor,
+		}
+
+		// Is it a TAG directive?
+	} else if bytes.Equal(name, []byte("TAG")) {
+		// Scan the TAG directive value.
+		var handle, prefix []byte
+		if !yaml_parser_scan_tag_directive_value(parser, start_mark, &handle, &prefix) {
+			return false
+		}
+		end_mark := parser.mark
+
+		// Create a TAG-DIRECTIVE token.
+		*token = yaml_token_t{
+			typ:        yaml_TAG_DIRECTIVE_TOKEN,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			value:      handle,
+			prefix:     prefix,
+		}
+
+		// Unknown directive.
+	} else {
+		yaml_parser_set_scanner_error(parser, "while scanning a directive",
+			start_mark, "found uknown directive name")
+		return false
+	}
+
+	// Eat the rest of the line including any comments.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	if parser.buffer[parser.buffer_pos] == '#' {
+		for !is_breakz(parser.buffer, parser.buffer_pos) {
+			skip(parser)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+	}
+
+	// Check if we are at the end of the line.
+	if !is_breakz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a directive",
+			start_mark, "did not find expected comment or line break")
+		return false
+	}
+
+	// Eat a line break.
+	if is_break(parser.buffer, parser.buffer_pos) {
+		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+			return false
+		}
+		skip_line(parser)
+	}
+
+	return true
+}
+
+// Scan the directive name.
+//
+// Scope:
+//      %YAML   1.1     # a comment \n
+//       ^^^^
+//      %TAG    !yaml!  tag:yaml.org,2002:  \n
+//       ^^^
+//
+func yaml_parser_scan_directive_name(parser *yaml_parser_t, start_mark yaml_mark_t, name *[]byte) bool {
+	// Consume the directive name.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	var s []byte
+	for is_alpha(parser.buffer, parser.buffer_pos) {
+		s = read(parser, s)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Check if the name is empty.
+	if len(s) == 0 {
+		yaml_parser_set_scanner_error(parser, "while scanning a directive",
+			start_mark, "could not find expected directive name")
+		return false
+	}
+
+	// Check for an blank character after the name.
+	if !is_blankz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a directive",
+			start_mark, "found unexpected non-alphabetical character")
+		return false
+	}
+	*name = s
+	return true
+}
+
+// Scan the value of VERSION-DIRECTIVE.
+//
+// Scope:
+//      %YAML   1.1     # a comment \n
+//           ^^^^^^
+func yaml_parser_scan_version_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, major, minor *int8) bool {
+	// Eat whitespaces.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Consume the major version number.
+	if !yaml_parser_scan_version_directive_number(parser, start_mark, major) {
+		return false
+	}
+
+	// Eat '.'.
+	if parser.buffer[parser.buffer_pos] != '.' {
+		return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+			start_mark, "did not find expected digit or '.' character")
+	}
+
+	skip(parser)
+
+	// Consume the minor version number.
+	if !yaml_parser_scan_version_directive_number(parser, start_mark, minor) {
+		return false
+	}
+	return true
+}
+
+const max_number_length = 2
+
+// Scan the version number of VERSION-DIRECTIVE.
+//
+// Scope:
+//      %YAML   1.1     # a comment \n
+//              ^
+//      %YAML   1.1     # a comment \n
+//                ^
+func yaml_parser_scan_version_directive_number(parser *yaml_parser_t, start_mark yaml_mark_t, number *int8) bool {
+
+	// Repeat while the next character is digit.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	var value, length int8
+	for is_digit(parser.buffer, parser.buffer_pos) {
+		// Check if the number is too long.
+		length++
+		if length > max_number_length {
+			return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+				start_mark, "found extremely long version number")
+		}
+		value = value*10 + int8(as_digit(parser.buffer, parser.buffer_pos))
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Check if the number was present.
+	if length == 0 {
+		return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+			start_mark, "did not find expected version number")
+	}
+	*number = value
+	return true
+}
+
+// Scan the value of a TAG-DIRECTIVE token.
+//
+// Scope:
+//      %TAG    !yaml!  tag:yaml.org,2002:  \n
+//          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//
+func yaml_parser_scan_tag_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, handle, prefix *[]byte) bool {
+	var handle_value, prefix_value []byte
+
+	// Eat whitespaces.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Scan a handle.
+	if !yaml_parser_scan_tag_handle(parser, true, start_mark, &handle_value) {
+		return false
+	}
+
+	// Expect a whitespace.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	if !is_blank(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
+			start_mark, "did not find expected whitespace")
+		return false
+	}
+
+	// Eat whitespaces.
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Scan a prefix.
+	if !yaml_parser_scan_tag_uri(parser, true, nil, start_mark, &prefix_value) {
+		return false
+	}
+
+	// Expect a whitespace or line break.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	if !is_blankz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
+			start_mark, "did not find expected whitespace or line break")
+		return false
+	}
+
+	*handle = handle_value
+	*prefix = prefix_value
+	return true
+}
+
+func yaml_parser_scan_anchor(parser *yaml_parser_t, token *yaml_token_t, typ yaml_token_type_t) bool {
+	var s []byte
+
+	// Eat the indicator character.
+	start_mark := parser.mark
+	skip(parser)
+
+	// Consume the value.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	for is_alpha(parser.buffer, parser.buffer_pos) {
+		s = read(parser, s)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	end_mark := parser.mark
+
+	/*
+	 * Check if length of the anchor is greater than 0 and it is followed by
+	 * a whitespace character or one of the indicators:
+	 *
+	 *      '?', ':', ',', ']', '}', '%', '@', '`'.
+	 */
+
+	if len(s) == 0 ||
+		!(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '?' ||
+			parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == ',' ||
+			parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '}' ||
+			parser.buffer[parser.buffer_pos] == '%' || parser.buffer[parser.buffer_pos] == '@' ||
+			parser.buffer[parser.buffer_pos] == '`') {
+		context := "while scanning an alias"
+		if typ == yaml_ANCHOR_TOKEN {
+			context = "while scanning an anchor"
+		}
+		yaml_parser_set_scanner_error(parser, context, start_mark,
+			"did not find expected alphabetic or numeric character")
+		return false
+	}
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        typ,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      s,
+	}
+
+	return true
+}
+
+/*
+ * Scan a TAG token.
+ */
+
+func yaml_parser_scan_tag(parser *yaml_parser_t, token *yaml_token_t) bool {
+	var handle, suffix []byte
+
+	start_mark := parser.mark
+
+	// Check if the tag is in the canonical form.
+	if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+		return false
+	}
+
+	if parser.buffer[parser.buffer_pos+1] == '<' {
+		// Keep the handle as ''
+
+		// Eat '!<'
+		skip(parser)
+		skip(parser)
+
+		// Consume the tag value.
+		if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
+			return false
+		}
+
+		// Check for '>' and eat it.
+		if parser.buffer[parser.buffer_pos] != '>' {
+			yaml_parser_set_scanner_error(parser, "while scanning a tag",
+				start_mark, "did not find the expected '>'")
+			return false
+		}
+
+		skip(parser)
+	} else {
+		// The tag has either the '!suffix' or the '!handle!suffix' form.
+
+		// First, try to scan a handle.
+		if !yaml_parser_scan_tag_handle(parser, false, start_mark, &handle) {
+			return false
+		}
+
+		// Check if it is, indeed, handle.
+		if handle[0] == '!' && len(handle) > 1 && handle[len(handle)-1] == '!' {
+			// Scan the suffix now.
+			if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
+				return false
+			}
+		} else {
+			// It wasn't a handle after all.  Scan the rest of the tag.
+			if !yaml_parser_scan_tag_uri(parser, false, handle, start_mark, &suffix) {
+				return false
+			}
+
+			// Set the handle to '!'.
+			handle = []byte{'!'}
+
+			// A special case: the '!' tag.  Set the handle to '' and the
+			// suffix to '!'.
+			if len(suffix) == 0 {
+				handle, suffix = suffix, handle
+			}
+		}
+	}
+
+	// Check the character which ends the tag.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	if !is_blankz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a tag",
+			start_mark, "did not find expected whitespace or line break")
+		return false
+	}
+
+	end_mark := parser.mark
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        yaml_TAG_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      handle,
+		suffix:     suffix,
+	}
+	return true
+}
+
+// Scan a tag handle.
+func yaml_parser_scan_tag_handle(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, handle *[]byte) bool {
+	// Check the initial '!' character.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	if parser.buffer[parser.buffer_pos] != '!' {
+		yaml_parser_set_scanner_tag_error(parser, directive,
+			start_mark, "did not find expected '!'")
+		return false
+	}
+
+	var s []byte
+
+	// Copy the '!' character.
+	s = read(parser, s)
+
+	// Copy all subsequent alphabetical and numerical characters.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	for is_alpha(parser.buffer, parser.buffer_pos) {
+		s = read(parser, s)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Check if the trailing character is '!' and copy it.
+	if parser.buffer[parser.buffer_pos] == '!' {
+		s = read(parser, s)
+	} else {
+		// It's either the '!' tag or not really a tag handle.  If it's a %TAG
+		// directive, it's an error.  If it's a tag token, it must be a part of URI.
+		if directive && !(s[0] == '!' && s[1] == 0) {
+			yaml_parser_set_scanner_tag_error(parser, directive,
+				start_mark, "did not find expected '!'")
+			return false
+		}
+	}
+
+	*handle = s
+	return true
+}
+
+// Scan a tag.
+func yaml_parser_scan_tag_uri(parser *yaml_parser_t, directive bool, head []byte, start_mark yaml_mark_t, uri *[]byte) bool {
+	//size_t length = head ? strlen((char *)head) : 0
+	var s []byte
+
+	// Copy the head if needed.
+	//
+	// Note that we don't copy the leading '!' character.
+	if len(head) > 1 {
+		s = append(s, head[1:]...)
+	}
+
+	// Scan the tag.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	// The set of characters that may appear in URI is as follows:
+	//
+	//      '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&',
+	//      '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']',
+	//      '%'.
+	// [Go] Convert this into more reasonable logic.
+	for is_alpha(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == ';' ||
+		parser.buffer[parser.buffer_pos] == '/' || parser.buffer[parser.buffer_pos] == '?' ||
+		parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == '@' ||
+		parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '=' ||
+		parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '$' ||
+		parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '.' ||
+		parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '~' ||
+		parser.buffer[parser.buffer_pos] == '*' || parser.buffer[parser.buffer_pos] == '\'' ||
+		parser.buffer[parser.buffer_pos] == '(' || parser.buffer[parser.buffer_pos] == ')' ||
+		parser.buffer[parser.buffer_pos] == '[' || parser.buffer[parser.buffer_pos] == ']' ||
+		parser.buffer[parser.buffer_pos] == '%' {
+		// Check if it is a URI-escape sequence.
+		if parser.buffer[parser.buffer_pos] == '%' {
+			if !yaml_parser_scan_uri_escapes(parser, directive, start_mark, &s) {
+				return false
+			}
+		} else {
+			s = read(parser, s)
+		}
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Check if the tag is non-empty.
+	if len(s) == 0 {
+		yaml_parser_set_scanner_tag_error(parser, directive,
+			start_mark, "did not find expected tag URI")
+		return false
+	}
+	*uri = s
+	return true
+}
+
+// Decode an URI-escape sequence corresponding to a single UTF-8 character.
+func yaml_parser_scan_uri_escapes(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, s *[]byte) bool {
+
+	// Decode the required number of characters.
+	w := 1024
+	for w > 0 {
+		// Check for a URI-escaped octet.
+		if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
+			return false
+		}
+
+		if !(parser.buffer[parser.buffer_pos] == '%' &&
+			is_hex(parser.buffer, parser.buffer_pos+1) &&
+			is_hex(parser.buffer, parser.buffer_pos+2)) {
+			return yaml_parser_set_scanner_tag_error(parser, directive,
+				start_mark, "did not find URI escaped octet")
+		}
+
+		// Get the octet.
+		octet := byte((as_hex(parser.buffer, parser.buffer_pos+1) << 4) + as_hex(parser.buffer, parser.buffer_pos+2))
+
+		// If it is the leading octet, determine the length of the UTF-8 sequence.
+		if w == 1024 {
+			w = width(octet)
+			if w == 0 {
+				return yaml_parser_set_scanner_tag_error(parser, directive,
+					start_mark, "found an incorrect leading UTF-8 octet")
+			}
+		} else {
+			// Check if the trailing octet is correct.
+			if octet&0xC0 != 0x80 {
+				return yaml_parser_set_scanner_tag_error(parser, directive,
+					start_mark, "found an incorrect trailing UTF-8 octet")
+			}
+		}
+
+		// Copy the octet and move the pointers.
+		*s = append(*s, octet)
+		skip(parser)
+		skip(parser)
+		skip(parser)
+		w--
+	}
+	return true
+}
+
+// Scan a block scalar.
+func yaml_parser_scan_block_scalar(parser *yaml_parser_t, token *yaml_token_t, literal bool) bool {
+	// Eat the indicator '|' or '>'.
+	start_mark := parser.mark
+	skip(parser)
+
+	// Scan the additional block scalar indicators.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	// Check for a chomping indicator.
+	var chomping, increment int
+	if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
+		// Set the chomping method and eat the indicator.
+		if parser.buffer[parser.buffer_pos] == '+' {
+			chomping = +1
+		} else {
+			chomping = -1
+		}
+		skip(parser)
+
+		// Check for an indentation indicator.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		if is_digit(parser.buffer, parser.buffer_pos) {
+			// Check that the indentation is greater than 0.
+			if parser.buffer[parser.buffer_pos] == '0' {
+				yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+					start_mark, "found an indentation indicator equal to 0")
+				return false
+			}
+
+			// Get the indentation level and eat the indicator.
+			increment = as_digit(parser.buffer, parser.buffer_pos)
+			skip(parser)
+		}
+
+	} else if is_digit(parser.buffer, parser.buffer_pos) {
+		// Do the same as above, but in the opposite order.
+
+		if parser.buffer[parser.buffer_pos] == '0' {
+			yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+				start_mark, "found an indentation indicator equal to 0")
+			return false
+		}
+		increment = as_digit(parser.buffer, parser.buffer_pos)
+		skip(parser)
+
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
+			if parser.buffer[parser.buffer_pos] == '+' {
+				chomping = +1
+			} else {
+				chomping = -1
+			}
+			skip(parser)
+		}
+	}
+
+	// Eat whitespaces and comments to the end of the line.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+	if parser.buffer[parser.buffer_pos] == '#' {
+		for !is_breakz(parser.buffer, parser.buffer_pos) {
+			skip(parser)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+	}
+
+	// Check if we are at the end of the line.
+	if !is_breakz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+			start_mark, "did not find expected comment or line break")
+		return false
+	}
+
+	// Eat a line break.
+	if is_break(parser.buffer, parser.buffer_pos) {
+		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+			return false
+		}
+		skip_line(parser)
+	}
+
+	end_mark := parser.mark
+
+	// Set the indentation level if it was specified.
+	var indent int
+	if increment > 0 {
+		if parser.indent >= 0 {
+			indent = parser.indent + increment
+		} else {
+			indent = increment
+		}
+	}
+
+	// Scan the leading line breaks and determine the indentation level if needed.
+	var s, leading_break, trailing_breaks []byte
+	if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
+		return false
+	}
+
+	// Scan the block scalar content.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	var leading_blank, trailing_blank bool
+	for parser.mark.column == indent && !is_z(parser.buffer, parser.buffer_pos) {
+		// We are at the beginning of a non-empty line.
+
+		// Is it a trailing whitespace?
+		trailing_blank = is_blank(parser.buffer, parser.buffer_pos)
+
+		// Check if we need to fold the leading line break.
+		if !literal && !leading_blank && !trailing_blank && len(leading_break) > 0 && leading_break[0] == '\n' {
+			// Do we need to join the lines by space?
+			if len(trailing_breaks) == 0 {
+				s = append(s, ' ')
+			}
+		} else {
+			s = append(s, leading_break...)
+		}
+		leading_break = leading_break[:0]
+
+		// Append the remaining line breaks.
+		s = append(s, trailing_breaks...)
+		trailing_breaks = trailing_breaks[:0]
+
+		// Is it a leading whitespace?
+		leading_blank = is_blank(parser.buffer, parser.buffer_pos)
+
+		// Consume the current line.
+		for !is_breakz(parser.buffer, parser.buffer_pos) {
+			s = read(parser, s)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+
+		// Consume the line break.
+		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+			return false
+		}
+
+		leading_break = read_line(parser, leading_break)
+
+		// Eat the following indentation spaces and line breaks.
+		if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
+			return false
+		}
+	}
+
+	// Chomp the tail.
+	if chomping != -1 {
+		s = append(s, leading_break...)
+	}
+	if chomping == 1 {
+		s = append(s, trailing_breaks...)
+	}
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        yaml_SCALAR_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      s,
+		style:      yaml_LITERAL_SCALAR_STYLE,
+	}
+	if !literal {
+		token.style = yaml_FOLDED_SCALAR_STYLE
+	}
+	return true
+}
+
+// Scan indentation spaces and line breaks for a block scalar.  Determine the
+// indentation level if needed.
+func yaml_parser_scan_block_scalar_breaks(parser *yaml_parser_t, indent *int, breaks *[]byte, start_mark yaml_mark_t, end_mark *yaml_mark_t) bool {
+	*end_mark = parser.mark
+
+	// Eat the indentation spaces and line breaks.
+	max_indent := 0
+	for {
+		// Eat the indentation spaces.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		for (*indent == 0 || parser.mark.column < *indent) && is_space(parser.buffer, parser.buffer_pos) {
+			skip(parser)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+		if parser.mark.column > max_indent {
+			max_indent = parser.mark.column
+		}
+
+		// Check for a tab character messing the indentation.
+		if (*indent == 0 || parser.mark.column < *indent) && is_tab(parser.buffer, parser.buffer_pos) {
+			return yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+				start_mark, "found a tab character where an indentation space is expected")
+		}
+
+		// Have we found a non-empty line?
+		if !is_break(parser.buffer, parser.buffer_pos) {
+			break
+		}
+
+		// Consume the line break.
+		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+			return false
+		}
+		// [Go] Should really be returning breaks instead.
+		*breaks = read_line(parser, *breaks)
+		*end_mark = parser.mark
+	}
+
+	// Determine the indentation level if needed.
+	if *indent == 0 {
+		*indent = max_indent
+		if *indent < parser.indent+1 {
+			*indent = parser.indent + 1
+		}
+		if *indent < 1 {
+			*indent = 1
+		}
+	}
+	return true
+}
+
+// Scan a quoted scalar.
+func yaml_parser_scan_flow_scalar(parser *yaml_parser_t, token *yaml_token_t, single bool) bool {
+	// Eat the left quote.
+	start_mark := parser.mark
+	skip(parser)
+
+	// Consume the content of the quoted scalar.
+	var s, leading_break, trailing_breaks, whitespaces []byte
+	for {
+		// Check that there are no document indicators at the beginning of the line.
+		if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+			return false
+		}
+
+		if parser.mark.column == 0 &&
+			((parser.buffer[parser.buffer_pos+0] == '-' &&
+				parser.buffer[parser.buffer_pos+1] == '-' &&
+				parser.buffer[parser.buffer_pos+2] == '-') ||
+				(parser.buffer[parser.buffer_pos+0] == '.' &&
+					parser.buffer[parser.buffer_pos+1] == '.' &&
+					parser.buffer[parser.buffer_pos+2] == '.')) &&
+			is_blankz(parser.buffer, parser.buffer_pos+3) {
+			yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
+				start_mark, "found unexpected document indicator")
+			return false
+		}
+
+		// Check for EOF.
+		if is_z(parser.buffer, parser.buffer_pos) {
+			yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
+				start_mark, "found unexpected end of stream")
+			return false
+		}
+
+		// Consume non-blank characters.
+		leading_blanks := false
+		for !is_blankz(parser.buffer, parser.buffer_pos) {
+			if single && parser.buffer[parser.buffer_pos] == '\'' && parser.buffer[parser.buffer_pos+1] == '\'' {
+				// Is is an escaped single quote.
+				s = append(s, '\'')
+				skip(parser)
+				skip(parser)
+
+			} else if single && parser.buffer[parser.buffer_pos] == '\'' {
+				// It is a right single quote.
+				break
+			} else if !single && parser.buffer[parser.buffer_pos] == '"' {
+				// It is a right double quote.
+				break
+
+			} else if !single && parser.buffer[parser.buffer_pos] == '\\' && is_break(parser.buffer, parser.buffer_pos+1) {
+				// It is an escaped line break.
+				if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
+					return false
+				}
+				skip(parser)
+				skip_line(parser)
+				leading_blanks = true
+				break
+
+			} else if !single && parser.buffer[parser.buffer_pos] == '\\' {
+				// It is an escape sequence.
+				code_length := 0
+
+				// Check the escape character.
+				switch parser.buffer[parser.buffer_pos+1] {
+				case '0':
+					s = append(s, 0)
+				case 'a':
+					s = append(s, '\x07')
+				case 'b':
+					s = append(s, '\x08')
+				case 't', '\t':
+					s = append(s, '\x09')
+				case 'n':
+					s = append(s, '\x0A')
+				case 'v':
+					s = append(s, '\x0B')
+				case 'f':
+					s = append(s, '\x0C')
+				case 'r':
+					s = append(s, '\x0D')
+				case 'e':
+					s = append(s, '\x1B')
+				case ' ':
+					s = append(s, '\x20')
+				case '"':
+					s = append(s, '"')
+				case '\'':
+					s = append(s, '\'')
+				case '\\':
+					s = append(s, '\\')
+				case 'N': // NEL (#x85)
+					s = append(s, '\xC2')
+					s = append(s, '\x85')
+				case '_': // #xA0
+					s = append(s, '\xC2')
+					s = append(s, '\xA0')
+				case 'L': // LS (#x2028)
+					s = append(s, '\xE2')
+					s = append(s, '\x80')
+					s = append(s, '\xA8')
+				case 'P': // PS (#x2029)
+					s = append(s, '\xE2')
+					s = append(s, '\x80')
+					s = append(s, '\xA9')
+				case 'x':
+					code_length = 2
+				case 'u':
+					code_length = 4
+				case 'U':
+					code_length = 8
+				default:
+					yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+						start_mark, "found unknown escape character")
+					return false
+				}
+
+				skip(parser)
+				skip(parser)
+
+				// Consume an arbitrary escape code.
+				if code_length > 0 {
+					var value int
+
+					// Scan the character value.
+					if parser.unread < code_length && !yaml_parser_update_buffer(parser, code_length) {
+						return false
+					}
+					for k := 0; k < code_length; k++ {
+						if !is_hex(parser.buffer, parser.buffer_pos+k) {
+							yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+								start_mark, "did not find expected hexdecimal number")
+							return false
+						}
+						value = (value << 4) + as_hex(parser.buffer, parser.buffer_pos+k)
+					}
+
+					// Check the value and write the character.
+					if (value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF {
+						yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+							start_mark, "found invalid Unicode character escape code")
+						return false
+					}
+					if value <= 0x7F {
+						s = append(s, byte(value))
+					} else if value <= 0x7FF {
+						s = append(s, byte(0xC0+(value>>6)))
+						s = append(s, byte(0x80+(value&0x3F)))
+					} else if value <= 0xFFFF {
+						s = append(s, byte(0xE0+(value>>12)))
+						s = append(s, byte(0x80+((value>>6)&0x3F)))
+						s = append(s, byte(0x80+(value&0x3F)))
+					} else {
+						s = append(s, byte(0xF0+(value>>18)))
+						s = append(s, byte(0x80+((value>>12)&0x3F)))
+						s = append(s, byte(0x80+((value>>6)&0x3F)))
+						s = append(s, byte(0x80+(value&0x3F)))
+					}
+
+					// Advance the pointer.
+					for k := 0; k < code_length; k++ {
+						skip(parser)
+					}
+				}
+			} else {
+				// It is a non-escaped non-blank character.
+				s = read(parser, s)
+			}
+			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+				return false
+			}
+		}
+
+		// Check if we are at the end of the scalar.
+		if single {
+			if parser.buffer[parser.buffer_pos] == '\'' {
+				break
+			}
+		} else {
+			if parser.buffer[parser.buffer_pos] == '"' {
+				break
+			}
+		}
+
+		// Consume blank characters.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+
+		for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
+			if is_blank(parser.buffer, parser.buffer_pos) {
+				// Consume a space or a tab character.
+				if !leading_blanks {
+					whitespaces = read(parser, whitespaces)
+				} else {
+					skip(parser)
+				}
+			} else {
+				if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+					return false
+				}
+
+				// Check if it is a first line break.
+				if !leading_blanks {
+					whitespaces = whitespaces[:0]
+					leading_break = read_line(parser, leading_break)
+					leading_blanks = true
+				} else {
+					trailing_breaks = read_line(parser, trailing_breaks)
+				}
+			}
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+
+		// Join the whitespaces or fold line breaks.
+		if leading_blanks {
+			// Do we need to fold line breaks?
+			if len(leading_break) > 0 && leading_break[0] == '\n' {
+				if len(trailing_breaks) == 0 {
+					s = append(s, ' ')
+				} else {
+					s = append(s, trailing_breaks...)
+				}
+			} else {
+				s = append(s, leading_break...)
+				s = append(s, trailing_breaks...)
+			}
+			trailing_breaks = trailing_breaks[:0]
+			leading_break = leading_break[:0]
+		} else {
+			s = append(s, whitespaces...)
+			whitespaces = whitespaces[:0]
+		}
+	}
+
+	// Eat the right quote.
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        yaml_SCALAR_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      s,
+		style:      yaml_SINGLE_QUOTED_SCALAR_STYLE,
+	}
+	if !single {
+		token.style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	}
+	return true
+}
+
+// Scan a plain scalar.
+func yaml_parser_scan_plain_scalar(parser *yaml_parser_t, token *yaml_token_t) bool {
+
+	var s, leading_break, trailing_breaks, whitespaces []byte
+	var leading_blanks bool
+	var indent = parser.indent + 1
+
+	start_mark := parser.mark
+	end_mark := parser.mark
+
+	// Consume the content of the plain scalar.
+	for {
+		// Check for a document indicator.
+		if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+			return false
+		}
+		if parser.mark.column == 0 &&
+			((parser.buffer[parser.buffer_pos+0] == '-' &&
+				parser.buffer[parser.buffer_pos+1] == '-' &&
+				parser.buffer[parser.buffer_pos+2] == '-') ||
+				(parser.buffer[parser.buffer_pos+0] == '.' &&
+					parser.buffer[parser.buffer_pos+1] == '.' &&
+					parser.buffer[parser.buffer_pos+2] == '.')) &&
+			is_blankz(parser.buffer, parser.buffer_pos+3) {
+			break
+		}
+
+		// Check for a comment.
+		if parser.buffer[parser.buffer_pos] == '#' {
+			break
+		}
+
+		// Consume non-blank characters.
+		for !is_blankz(parser.buffer, parser.buffer_pos) {
+
+			// Check for 'x:x' in the flow context. TODO: Fix the test "spec-08-13".
+			if parser.flow_level > 0 &&
+				parser.buffer[parser.buffer_pos] == ':' &&
+				!is_blankz(parser.buffer, parser.buffer_pos+1) {
+				yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
+					start_mark, "found unexpected ':'")
+				return false
+			}
+
+			// Check for indicators that may end a plain scalar.
+			if (parser.buffer[parser.buffer_pos] == ':' && is_blankz(parser.buffer, parser.buffer_pos+1)) ||
+				(parser.flow_level > 0 &&
+					(parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == ':' ||
+						parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == '[' ||
+						parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
+						parser.buffer[parser.buffer_pos] == '}')) {
+				break
+			}
+
+			// Check if we need to join whitespaces and breaks.
+			if leading_blanks || len(whitespaces) > 0 {
+				if leading_blanks {
+					// Do we need to fold line breaks?
+					if leading_break[0] == '\n' {
+						if len(trailing_breaks) == 0 {
+							s = append(s, ' ')
+						} else {
+							s = append(s, trailing_breaks...)
+						}
+					} else {
+						s = append(s, leading_break...)
+						s = append(s, trailing_breaks...)
+					}
+					trailing_breaks = trailing_breaks[:0]
+					leading_break = leading_break[:0]
+					leading_blanks = false
+				} else {
+					s = append(s, whitespaces...)
+					whitespaces = whitespaces[:0]
+				}
+			}
+
+			// Copy the character.
+			s = read(parser, s)
+
+			end_mark = parser.mark
+			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+				return false
+			}
+		}
+
+		// Is it the end?
+		if !(is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos)) {
+			break
+		}
+
+		// Consume blank characters.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+
+		for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
+			if is_blank(parser.buffer, parser.buffer_pos) {
+
+				// Check for tab character that abuse indentation.
+				if leading_blanks && parser.mark.column < indent && is_tab(parser.buffer, parser.buffer_pos) {
+					yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
+						start_mark, "found a tab character that violate indentation")
+					return false
+				}
+
+				// Consume a space or a tab character.
+				if !leading_blanks {
+					whitespaces = read(parser, whitespaces)
+				} else {
+					skip(parser)
+				}
+			} else {
+				if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+					return false
+				}
+
+				// Check if it is a first line break.
+				if !leading_blanks {
+					whitespaces = whitespaces[:0]
+					leading_break = read_line(parser, leading_break)
+					leading_blanks = true
+				} else {
+					trailing_breaks = read_line(parser, trailing_breaks)
+				}
+			}
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+
+		// Check indentation level.
+		if parser.flow_level == 0 && parser.mark.column < indent {
+			break
+		}
+	}
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        yaml_SCALAR_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      s,
+		style:      yaml_PLAIN_SCALAR_STYLE,
+	}
+
+	// Note that we change the 'simple_key_allowed' flag.
+	if leading_blanks {
+		parser.simple_key_allowed = true
+	}
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/sorter.go b/vendor/gopkg.in/yaml.v2/sorter.go
new file mode 100644
index 0000000..5958822
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/sorter.go
@@ -0,0 +1,104 @@
+package yaml
+
+import (
+	"reflect"
+	"unicode"
+)
+
+type keyList []reflect.Value
+
+func (l keyList) Len() int      { return len(l) }
+func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
+func (l keyList) Less(i, j int) bool {
+	a := l[i]
+	b := l[j]
+	ak := a.Kind()
+	bk := b.Kind()
+	for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
+		a = a.Elem()
+		ak = a.Kind()
+	}
+	for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
+		b = b.Elem()
+		bk = b.Kind()
+	}
+	af, aok := keyFloat(a)
+	bf, bok := keyFloat(b)
+	if aok && bok {
+		if af != bf {
+			return af < bf
+		}
+		if ak != bk {
+			return ak < bk
+		}
+		return numLess(a, b)
+	}
+	if ak != reflect.String || bk != reflect.String {
+		return ak < bk
+	}
+	ar, br := []rune(a.String()), []rune(b.String())
+	for i := 0; i < len(ar) && i < len(br); i++ {
+		if ar[i] == br[i] {
+			continue
+		}
+		al := unicode.IsLetter(ar[i])
+		bl := unicode.IsLetter(br[i])
+		if al && bl {
+			return ar[i] < br[i]
+		}
+		if al || bl {
+			return bl
+		}
+		var ai, bi int
+		var an, bn int64
+		for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
+			an = an*10 + int64(ar[ai]-'0')
+		}
+		for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
+			bn = bn*10 + int64(br[bi]-'0')
+		}
+		if an != bn {
+			return an < bn
+		}
+		if ai != bi {
+			return ai < bi
+		}
+		return ar[i] < br[i]
+	}
+	return len(ar) < len(br)
+}
+
+// keyFloat returns a float value for v if it is a number/bool
+// and whether it is a number/bool or not.
+func keyFloat(v reflect.Value) (f float64, ok bool) {
+	switch v.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return float64(v.Int()), true
+	case reflect.Float32, reflect.Float64:
+		return v.Float(), true
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return float64(v.Uint()), true
+	case reflect.Bool:
+		if v.Bool() {
+			return 1, true
+		}
+		return 0, true
+	}
+	return 0, false
+}
+
+// numLess returns whether a < b.
+// a and b must necessarily have the same kind.
+func numLess(a, b reflect.Value) bool {
+	switch a.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return a.Int() < b.Int()
+	case reflect.Float32, reflect.Float64:
+		return a.Float() < b.Float()
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return a.Uint() < b.Uint()
+	case reflect.Bool:
+		return !a.Bool() && b.Bool()
+	}
+	panic("not a number")
+}
diff --git a/vendor/gopkg.in/yaml.v2/writerc.go b/vendor/gopkg.in/yaml.v2/writerc.go
new file mode 100644
index 0000000..190362f
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/writerc.go
@@ -0,0 +1,89 @@
+package yaml
+
+// Set the writer error and return false.
+func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
+	emitter.error = yaml_WRITER_ERROR
+	emitter.problem = problem
+	return false
+}
+
+// Flush the output buffer.
+func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
+	if emitter.write_handler == nil {
+		panic("write handler not set")
+	}
+
+	// Check if the buffer is empty.
+	if emitter.buffer_pos == 0 {
+		return true
+	}
+
+	// If the output encoding is UTF-8, we don't need to recode the buffer.
+	if emitter.encoding == yaml_UTF8_ENCODING {
+		if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
+			return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+		}
+		emitter.buffer_pos = 0
+		return true
+	}
+
+	// Recode the buffer into the raw buffer.
+	var low, high int
+	if emitter.encoding == yaml_UTF16LE_ENCODING {
+		low, high = 0, 1
+	} else {
+		high, low = 1, 0
+	}
+
+	pos := 0
+	for pos < emitter.buffer_pos {
+		// See the "reader.c" code for more details on UTF-8 encoding.  Note
+		// that we assume that the buffer contains a valid UTF-8 sequence.
+
+		// Read the next UTF-8 character.
+		octet := emitter.buffer[pos]
+
+		var w int
+		var value rune
+		switch {
+		case octet&0x80 == 0x00:
+			w, value = 1, rune(octet&0x7F)
+		case octet&0xE0 == 0xC0:
+			w, value = 2, rune(octet&0x1F)
+		case octet&0xF0 == 0xE0:
+			w, value = 3, rune(octet&0x0F)
+		case octet&0xF8 == 0xF0:
+			w, value = 4, rune(octet&0x07)
+		}
+		for k := 1; k < w; k++ {
+			octet = emitter.buffer[pos+k]
+			value = (value << 6) + (rune(octet) & 0x3F)
+		}
+		pos += w
+
+		// Write the character.
+		if value < 0x10000 {
+			var b [2]byte
+			b[high] = byte(value >> 8)
+			b[low] = byte(value & 0xFF)
+			emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1])
+		} else {
+			// Write the character using a surrogate pair (check "reader.c").
+			var b [4]byte
+			value -= 0x10000
+			b[high] = byte(0xD8 + (value >> 18))
+			b[low] = byte((value >> 10) & 0xFF)
+			b[high+2] = byte(0xDC + ((value >> 8) & 0xFF))
+			b[low+2] = byte(value & 0xFF)
+			emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1], b[2], b[3])
+		}
+	}
+
+	// Write the raw buffer.
+	if err := emitter.write_handler(emitter, emitter.raw_buffer); err != nil {
+		return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+	}
+	emitter.buffer_pos = 0
+	emitter.raw_buffer = emitter.raw_buffer[:0]
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/yaml.go b/vendor/gopkg.in/yaml.v2/yaml.go
new file mode 100644
index 0000000..d133edf
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yaml.go
@@ -0,0 +1,346 @@
+// Package yaml implements YAML support for the Go language.
+//
+// Source code and other details for the project are available at GitHub:
+//
+//   https://github.com/go-yaml/yaml
+//
+package yaml
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+)
+
+// MapSlice encodes and decodes as a YAML map.
+// The order of keys is preserved when encoding and decoding.
+type MapSlice []MapItem
+
+// MapItem is an item in a MapSlice.
+type MapItem struct {
+	Key, Value interface{}
+}
+
+// The Unmarshaler interface may be implemented by types to customize their
+// behavior when being unmarshaled from a YAML document. The UnmarshalYAML
+// method receives a function that may be called to unmarshal the original
+// YAML value into a field or variable. It is safe to call the unmarshal
+// function parameter more than once if necessary.
+type Unmarshaler interface {
+	UnmarshalYAML(unmarshal func(interface{}) error) error
+}
+
+// The Marshaler interface may be implemented by types to customize their
+// behavior when being marshaled into a YAML document. The returned value
+// is marshaled in place of the original value implementing Marshaler.
+//
+// If an error is returned by MarshalYAML, the marshaling procedure stops
+// and returns with the provided error.
+type Marshaler interface {
+	MarshalYAML() (interface{}, error)
+}
+
+// Unmarshal decodes the first document found within the in byte slice
+// and assigns decoded values into the out value.
+//
+// Maps and pointers (to a struct, string, int, etc) are accepted as out
+// values. If an internal pointer within a struct is not initialized,
+// the yaml package will initialize it if necessary for unmarshalling
+// the provided data. The out parameter must not be nil.
+//
+// The type of the decoded values should be compatible with the respective
+// values in out. If one or more values cannot be decoded due to a type
+// mismatches, decoding continues partially until the end of the YAML
+// content, and a *yaml.TypeError is returned with details for all
+// missed values.
+//
+// Struct fields are only unmarshalled if they are exported (have an
+// upper case first letter), and are unmarshalled using the field name
+// lowercased as the default key. Custom keys may be defined via the
+// "yaml" name in the field tag: the content preceding the first comma
+// is used as the key, and the following comma-separated options are
+// used to tweak the marshalling process (see Marshal).
+// Conflicting names result in a runtime error.
+//
+// For example:
+//
+//     type T struct {
+//         F int `yaml:"a,omitempty"`
+//         B int
+//     }
+//     var t T
+//     yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
+//
+// See the documentation of Marshal for the format of tags and a list of
+// supported tag options.
+//
+func Unmarshal(in []byte, out interface{}) (err error) {
+	defer handleErr(&err)
+	d := newDecoder()
+	p := newParser(in)
+	defer p.destroy()
+	node := p.parse()
+	if node != nil {
+		v := reflect.ValueOf(out)
+		if v.Kind() == reflect.Ptr && !v.IsNil() {
+			v = v.Elem()
+		}
+		d.unmarshal(node, v)
+	}
+	if len(d.terrors) > 0 {
+		return &TypeError{d.terrors}
+	}
+	return nil
+}
+
+// Marshal serializes the value provided into a YAML document. The structure
+// of the generated document will reflect the structure of the value itself.
+// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
+//
+// Struct fields are only unmarshalled if they are exported (have an upper case
+// first letter), and are unmarshalled using the field name lowercased as the
+// default key. Custom keys may be defined via the "yaml" name in the field
+// tag: the content preceding the first comma is used as the key, and the
+// following comma-separated options are used to tweak the marshalling process.
+// Conflicting names result in a runtime error.
+//
+// The field tag format accepted is:
+//
+//     `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
+//
+// The following flags are currently supported:
+//
+//     omitempty    Only include the field if it's not set to the zero
+//                  value for the type or to empty slices or maps.
+//                  Does not apply to zero valued structs.
+//
+//     flow         Marshal using a flow style (useful for structs,
+//                  sequences and maps).
+//
+//     inline       Inline the field, which must be a struct or a map,
+//                  causing all of its fields or keys to be processed as if
+//                  they were part of the outer struct. For maps, keys must
+//                  not conflict with the yaml keys of other struct fields.
+//
+// In addition, if the key is "-", the field is ignored.
+//
+// For example:
+//
+//     type T struct {
+//         F int "a,omitempty"
+//         B int
+//     }
+//     yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
+//     yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
+//
+func Marshal(in interface{}) (out []byte, err error) {
+	defer handleErr(&err)
+	e := newEncoder()
+	defer e.destroy()
+	e.marshal("", reflect.ValueOf(in))
+	e.finish()
+	out = e.out
+	return
+}
+
+func handleErr(err *error) {
+	if v := recover(); v != nil {
+		if e, ok := v.(yamlError); ok {
+			*err = e.err
+		} else {
+			panic(v)
+		}
+	}
+}
+
+type yamlError struct {
+	err error
+}
+
+func fail(err error) {
+	panic(yamlError{err})
+}
+
+func failf(format string, args ...interface{}) {
+	panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
+}
+
+// A TypeError is returned by Unmarshal when one or more fields in
+// the YAML document cannot be properly decoded into the requested
+// types. When this error is returned, the value is still
+// unmarshaled partially.
+type TypeError struct {
+	Errors []string
+}
+
+func (e *TypeError) Error() string {
+	return fmt.Sprintf("yaml: unmarshal errors:\n  %s", strings.Join(e.Errors, "\n  "))
+}
+
+// --------------------------------------------------------------------------
+// Maintain a mapping of keys to structure field indexes
+
+// The code in this section was copied from mgo/bson.
+
+// structInfo holds details for the serialization of fields of
+// a given struct.
+type structInfo struct {
+	FieldsMap  map[string]fieldInfo
+	FieldsList []fieldInfo
+
+	// InlineMap is the number of the field in the struct that
+	// contains an ,inline map, or -1 if there's none.
+	InlineMap int
+}
+
+type fieldInfo struct {
+	Key       string
+	Num       int
+	OmitEmpty bool
+	Flow      bool
+
+	// Inline holds the field index if the field is part of an inlined struct.
+	Inline []int
+}
+
+var structMap = make(map[reflect.Type]*structInfo)
+var fieldMapMutex sync.RWMutex
+
+func getStructInfo(st reflect.Type) (*structInfo, error) {
+	fieldMapMutex.RLock()
+	sinfo, found := structMap[st]
+	fieldMapMutex.RUnlock()
+	if found {
+		return sinfo, nil
+	}
+
+	n := st.NumField()
+	fieldsMap := make(map[string]fieldInfo)
+	fieldsList := make([]fieldInfo, 0, n)
+	inlineMap := -1
+	for i := 0; i != n; i++ {
+		field := st.Field(i)
+		if field.PkgPath != "" {
+			continue // Private field
+		}
+
+		info := fieldInfo{Num: i}
+
+		tag := field.Tag.Get("yaml")
+		if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
+			tag = string(field.Tag)
+		}
+		if tag == "-" {
+			continue
+		}
+
+		inline := false
+		fields := strings.Split(tag, ",")
+		if len(fields) > 1 {
+			for _, flag := range fields[1:] {
+				switch flag {
+				case "omitempty":
+					info.OmitEmpty = true
+				case "flow":
+					info.Flow = true
+				case "inline":
+					inline = true
+				default:
+					return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
+				}
+			}
+			tag = fields[0]
+		}
+
+		if inline {
+			switch field.Type.Kind() {
+			case reflect.Map:
+				if inlineMap >= 0 {
+					return nil, errors.New("Multiple ,inline maps in struct " + st.String())
+				}
+				if field.Type.Key() != reflect.TypeOf("") {
+					return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
+				}
+				inlineMap = info.Num
+			case reflect.Struct:
+				sinfo, err := getStructInfo(field.Type)
+				if err != nil {
+					return nil, err
+				}
+				for _, finfo := range sinfo.FieldsList {
+					if _, found := fieldsMap[finfo.Key]; found {
+						msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
+						return nil, errors.New(msg)
+					}
+					if finfo.Inline == nil {
+						finfo.Inline = []int{i, finfo.Num}
+					} else {
+						finfo.Inline = append([]int{i}, finfo.Inline...)
+					}
+					fieldsMap[finfo.Key] = finfo
+					fieldsList = append(fieldsList, finfo)
+				}
+			default:
+				//return nil, errors.New("Option ,inline needs a struct value or map field")
+				return nil, errors.New("Option ,inline needs a struct value field")
+			}
+			continue
+		}
+
+		if tag != "" {
+			info.Key = tag
+		} else {
+			info.Key = strings.ToLower(field.Name)
+		}
+
+		if _, found = fieldsMap[info.Key]; found {
+			msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
+			return nil, errors.New(msg)
+		}
+
+		fieldsList = append(fieldsList, info)
+		fieldsMap[info.Key] = info
+	}
+
+	sinfo = &structInfo{fieldsMap, fieldsList, inlineMap}
+
+	fieldMapMutex.Lock()
+	structMap[st] = sinfo
+	fieldMapMutex.Unlock()
+	return sinfo, nil
+}
+
+func isZero(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.String:
+		return len(v.String()) == 0
+	case reflect.Interface, reflect.Ptr:
+		return v.IsNil()
+	case reflect.Slice:
+		return v.Len() == 0
+	case reflect.Map:
+		return v.Len() == 0
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Bool:
+		return !v.Bool()
+	case reflect.Struct:
+		vt := v.Type()
+		for i := v.NumField() - 1; i >= 0; i-- {
+			if vt.Field(i).PkgPath != "" {
+				continue // Private field
+			}
+			if !isZero(v.Field(i)) {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}
diff --git a/vendor/gopkg.in/yaml.v2/yamlh.go b/vendor/gopkg.in/yaml.v2/yamlh.go
new file mode 100644
index 0000000..d60a6b6
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yamlh.go
@@ -0,0 +1,716 @@
+package yaml
+
+import (
+	"io"
+)
+
+// The version directive data.
+type yaml_version_directive_t struct {
+	major int8 // The major version number.
+	minor int8 // The minor version number.
+}
+
+// The tag directive data.
+type yaml_tag_directive_t struct {
+	handle []byte // The tag handle.
+	prefix []byte // The tag prefix.
+}
+
+type yaml_encoding_t int
+
+// The stream encoding.
+const (
+	// Let the parser choose the encoding.
+	yaml_ANY_ENCODING yaml_encoding_t = iota
+
+	yaml_UTF8_ENCODING    // The default UTF-8 encoding.
+	yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
+	yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
+)
+
+type yaml_break_t int
+
+// Line break types.
+const (
+	// Let the parser choose the break type.
+	yaml_ANY_BREAK yaml_break_t = iota
+
+	yaml_CR_BREAK   // Use CR for line breaks (Mac style).
+	yaml_LN_BREAK   // Use LN for line breaks (Unix style).
+	yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
+)
+
+type yaml_error_type_t int
+
+// Many bad things could happen with the parser and emitter.
+const (
+	// No error is produced.
+	yaml_NO_ERROR yaml_error_type_t = iota
+
+	yaml_MEMORY_ERROR   // Cannot allocate or reallocate a block of memory.
+	yaml_READER_ERROR   // Cannot read or decode the input stream.
+	yaml_SCANNER_ERROR  // Cannot scan the input stream.
+	yaml_PARSER_ERROR   // Cannot parse the input stream.
+	yaml_COMPOSER_ERROR // Cannot compose a YAML document.
+	yaml_WRITER_ERROR   // Cannot write to the output stream.
+	yaml_EMITTER_ERROR  // Cannot emit a YAML stream.
+)
+
+// The pointer position.
+type yaml_mark_t struct {
+	index  int // The position index.
+	line   int // The position line.
+	column int // The position column.
+}
+
+// Node Styles
+
+type yaml_style_t int8
+
+type yaml_scalar_style_t yaml_style_t
+
+// Scalar styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
+
+	yaml_PLAIN_SCALAR_STYLE         // The plain scalar style.
+	yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
+	yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
+	yaml_LITERAL_SCALAR_STYLE       // The literal scalar style.
+	yaml_FOLDED_SCALAR_STYLE        // The folded scalar style.
+)
+
+type yaml_sequence_style_t yaml_style_t
+
+// Sequence styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
+
+	yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
+	yaml_FLOW_SEQUENCE_STYLE  // The flow sequence style.
+)
+
+type yaml_mapping_style_t yaml_style_t
+
+// Mapping styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
+
+	yaml_BLOCK_MAPPING_STYLE // The block mapping style.
+	yaml_FLOW_MAPPING_STYLE  // The flow mapping style.
+)
+
+// Tokens
+
+type yaml_token_type_t int
+
+// Token types.
+const (
+	// An empty token.
+	yaml_NO_TOKEN yaml_token_type_t = iota
+
+	yaml_STREAM_START_TOKEN // A STREAM-START token.
+	yaml_STREAM_END_TOKEN   // A STREAM-END token.
+
+	yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
+	yaml_TAG_DIRECTIVE_TOKEN     // A TAG-DIRECTIVE token.
+	yaml_DOCUMENT_START_TOKEN    // A DOCUMENT-START token.
+	yaml_DOCUMENT_END_TOKEN      // A DOCUMENT-END token.
+
+	yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
+	yaml_BLOCK_MAPPING_START_TOKEN  // A BLOCK-SEQUENCE-END token.
+	yaml_BLOCK_END_TOKEN            // A BLOCK-END token.
+
+	yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
+	yaml_FLOW_SEQUENCE_END_TOKEN   // A FLOW-SEQUENCE-END token.
+	yaml_FLOW_MAPPING_START_TOKEN  // A FLOW-MAPPING-START token.
+	yaml_FLOW_MAPPING_END_TOKEN    // A FLOW-MAPPING-END token.
+
+	yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
+	yaml_FLOW_ENTRY_TOKEN  // A FLOW-ENTRY token.
+	yaml_KEY_TOKEN         // A KEY token.
+	yaml_VALUE_TOKEN       // A VALUE token.
+
+	yaml_ALIAS_TOKEN  // An ALIAS token.
+	yaml_ANCHOR_TOKEN // An ANCHOR token.
+	yaml_TAG_TOKEN    // A TAG token.
+	yaml_SCALAR_TOKEN // A SCALAR token.
+)
+
+func (tt yaml_token_type_t) String() string {
+	switch tt {
+	case yaml_NO_TOKEN:
+		return "yaml_NO_TOKEN"
+	case yaml_STREAM_START_TOKEN:
+		return "yaml_STREAM_START_TOKEN"
+	case yaml_STREAM_END_TOKEN:
+		return "yaml_STREAM_END_TOKEN"
+	case yaml_VERSION_DIRECTIVE_TOKEN:
+		return "yaml_VERSION_DIRECTIVE_TOKEN"
+	case yaml_TAG_DIRECTIVE_TOKEN:
+		return "yaml_TAG_DIRECTIVE_TOKEN"
+	case yaml_DOCUMENT_START_TOKEN:
+		return "yaml_DOCUMENT_START_TOKEN"
+	case yaml_DOCUMENT_END_TOKEN:
+		return "yaml_DOCUMENT_END_TOKEN"
+	case yaml_BLOCK_SEQUENCE_START_TOKEN:
+		return "yaml_BLOCK_SEQUENCE_START_TOKEN"
+	case yaml_BLOCK_MAPPING_START_TOKEN:
+		return "yaml_BLOCK_MAPPING_START_TOKEN"
+	case yaml_BLOCK_END_TOKEN:
+		return "yaml_BLOCK_END_TOKEN"
+	case yaml_FLOW_SEQUENCE_START_TOKEN:
+		return "yaml_FLOW_SEQUENCE_START_TOKEN"
+	case yaml_FLOW_SEQUENCE_END_TOKEN:
+		return "yaml_FLOW_SEQUENCE_END_TOKEN"
+	case yaml_FLOW_MAPPING_START_TOKEN:
+		return "yaml_FLOW_MAPPING_START_TOKEN"
+	case yaml_FLOW_MAPPING_END_TOKEN:
+		return "yaml_FLOW_MAPPING_END_TOKEN"
+	case yaml_BLOCK_ENTRY_TOKEN:
+		return "yaml_BLOCK_ENTRY_TOKEN"
+	case yaml_FLOW_ENTRY_TOKEN:
+		return "yaml_FLOW_ENTRY_TOKEN"
+	case yaml_KEY_TOKEN:
+		return "yaml_KEY_TOKEN"
+	case yaml_VALUE_TOKEN:
+		return "yaml_VALUE_TOKEN"
+	case yaml_ALIAS_TOKEN:
+		return "yaml_ALIAS_TOKEN"
+	case yaml_ANCHOR_TOKEN:
+		return "yaml_ANCHOR_TOKEN"
+	case yaml_TAG_TOKEN:
+		return "yaml_TAG_TOKEN"
+	case yaml_SCALAR_TOKEN:
+		return "yaml_SCALAR_TOKEN"
+	}
+	return "<unknown token>"
+}
+
+// The token structure.
+type yaml_token_t struct {
+	// The token type.
+	typ yaml_token_type_t
+
+	// The start/end of the token.
+	start_mark, end_mark yaml_mark_t
+
+	// The stream encoding (for yaml_STREAM_START_TOKEN).
+	encoding yaml_encoding_t
+
+	// The alias/anchor/scalar value or tag/tag directive handle
+	// (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
+	value []byte
+
+	// The tag suffix (for yaml_TAG_TOKEN).
+	suffix []byte
+
+	// The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
+	prefix []byte
+
+	// The scalar style (for yaml_SCALAR_TOKEN).
+	style yaml_scalar_style_t
+
+	// The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
+	major, minor int8
+}
+
+// Events
+
+type yaml_event_type_t int8
+
+// Event types.
+const (
+	// An empty event.
+	yaml_NO_EVENT yaml_event_type_t = iota
+
+	yaml_STREAM_START_EVENT   // A STREAM-START event.
+	yaml_STREAM_END_EVENT     // A STREAM-END event.
+	yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
+	yaml_DOCUMENT_END_EVENT   // A DOCUMENT-END event.
+	yaml_ALIAS_EVENT          // An ALIAS event.
+	yaml_SCALAR_EVENT         // A SCALAR event.
+	yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
+	yaml_SEQUENCE_END_EVENT   // A SEQUENCE-END event.
+	yaml_MAPPING_START_EVENT  // A MAPPING-START event.
+	yaml_MAPPING_END_EVENT    // A MAPPING-END event.
+)
+
+// The event structure.
+type yaml_event_t struct {
+
+	// The event type.
+	typ yaml_event_type_t
+
+	// The start and end of the event.
+	start_mark, end_mark yaml_mark_t
+
+	// The document encoding (for yaml_STREAM_START_EVENT).
+	encoding yaml_encoding_t
+
+	// The version directive (for yaml_DOCUMENT_START_EVENT).
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives (for yaml_DOCUMENT_START_EVENT).
+	tag_directives []yaml_tag_directive_t
+
+	// The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
+	anchor []byte
+
+	// The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	tag []byte
+
+	// The scalar value (for yaml_SCALAR_EVENT).
+	value []byte
+
+	// Is the document start/end indicator implicit, or the tag optional?
+	// (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
+	implicit bool
+
+	// Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
+	quoted_implicit bool
+
+	// The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	style yaml_style_t
+}
+
+func (e *yaml_event_t) scalar_style() yaml_scalar_style_t     { return yaml_scalar_style_t(e.style) }
+func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
+func (e *yaml_event_t) mapping_style() yaml_mapping_style_t   { return yaml_mapping_style_t(e.style) }
+
+// Nodes
+
+const (
+	yaml_NULL_TAG      = "tag:yaml.org,2002:null"      // The tag !!null with the only possible value: null.
+	yaml_BOOL_TAG      = "tag:yaml.org,2002:bool"      // The tag !!bool with the values: true and false.
+	yaml_STR_TAG       = "tag:yaml.org,2002:str"       // The tag !!str for string values.
+	yaml_INT_TAG       = "tag:yaml.org,2002:int"       // The tag !!int for integer values.
+	yaml_FLOAT_TAG     = "tag:yaml.org,2002:float"     // The tag !!float for float values.
+	yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
+
+	yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
+	yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
+
+	// Not in original libyaml.
+	yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
+	yaml_MERGE_TAG  = "tag:yaml.org,2002:merge"
+
+	yaml_DEFAULT_SCALAR_TAG   = yaml_STR_TAG // The default scalar tag is !!str.
+	yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
+	yaml_DEFAULT_MAPPING_TAG  = yaml_MAP_TAG // The default mapping tag is !!map.
+)
+
+type yaml_node_type_t int
+
+// Node types.
+const (
+	// An empty node.
+	yaml_NO_NODE yaml_node_type_t = iota
+
+	yaml_SCALAR_NODE   // A scalar node.
+	yaml_SEQUENCE_NODE // A sequence node.
+	yaml_MAPPING_NODE  // A mapping node.
+)
+
+// An element of a sequence node.
+type yaml_node_item_t int
+
+// An element of a mapping node.
+type yaml_node_pair_t struct {
+	key   int // The key of the element.
+	value int // The value of the element.
+}
+
+// The node structure.
+type yaml_node_t struct {
+	typ yaml_node_type_t // The node type.
+	tag []byte           // The node tag.
+
+	// The node data.
+
+	// The scalar parameters (for yaml_SCALAR_NODE).
+	scalar struct {
+		value  []byte              // The scalar value.
+		length int                 // The length of the scalar value.
+		style  yaml_scalar_style_t // The scalar style.
+	}
+
+	// The sequence parameters (for YAML_SEQUENCE_NODE).
+	sequence struct {
+		items_data []yaml_node_item_t    // The stack of sequence items.
+		style      yaml_sequence_style_t // The sequence style.
+	}
+
+	// The mapping parameters (for yaml_MAPPING_NODE).
+	mapping struct {
+		pairs_data  []yaml_node_pair_t   // The stack of mapping pairs (key, value).
+		pairs_start *yaml_node_pair_t    // The beginning of the stack.
+		pairs_end   *yaml_node_pair_t    // The end of the stack.
+		pairs_top   *yaml_node_pair_t    // The top of the stack.
+		style       yaml_mapping_style_t // The mapping style.
+	}
+
+	start_mark yaml_mark_t // The beginning of the node.
+	end_mark   yaml_mark_t // The end of the node.
+
+}
+
+// The document structure.
+type yaml_document_t struct {
+
+	// The document nodes.
+	nodes []yaml_node_t
+
+	// The version directive.
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives.
+	tag_directives_data  []yaml_tag_directive_t
+	tag_directives_start int // The beginning of the tag directives list.
+	tag_directives_end   int // The end of the tag directives list.
+
+	start_implicit int // Is the document start indicator implicit?
+	end_implicit   int // Is the document end indicator implicit?
+
+	// The start/end of the document.
+	start_mark, end_mark yaml_mark_t
+}
+
+// The prototype of a read handler.
+//
+// The read handler is called when the parser needs to read more bytes from the
+// source. The handler should write not more than size bytes to the buffer.
+// The number of written bytes should be set to the size_read variable.
+//
+// [in,out]   data        A pointer to an application data specified by
+//                        yaml_parser_set_input().
+// [out]      buffer      The buffer to write the data from the source.
+// [in]       size        The size of the buffer.
+// [out]      size_read   The actual number of bytes read from the source.
+//
+// On success, the handler should return 1.  If the handler failed,
+// the returned value should be 0. On EOF, the handler should set the
+// size_read to 0 and return 1.
+type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
+
+// This structure holds information about a potential simple key.
+type yaml_simple_key_t struct {
+	possible     bool        // Is a simple key possible?
+	required     bool        // Is a simple key required?
+	token_number int         // The number of the token.
+	mark         yaml_mark_t // The position mark.
+}
+
+// The states of the parser.
+type yaml_parser_state_t int
+
+const (
+	yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
+
+	yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE           // Expect the beginning of an implicit document.
+	yaml_PARSE_DOCUMENT_START_STATE                    // Expect DOCUMENT-START.
+	yaml_PARSE_DOCUMENT_CONTENT_STATE                  // Expect the content of a document.
+	yaml_PARSE_DOCUMENT_END_STATE                      // Expect DOCUMENT-END.
+	yaml_PARSE_BLOCK_NODE_STATE                        // Expect a block node.
+	yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
+	yaml_PARSE_FLOW_NODE_STATE                         // Expect a flow node.
+	yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE        // Expect the first entry of a block sequence.
+	yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE              // Expect an entry of a block sequence.
+	yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE         // Expect an entry of an indentless sequence.
+	yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE           // Expect the first key of a block mapping.
+	yaml_PARSE_BLOCK_MAPPING_KEY_STATE                 // Expect a block mapping key.
+	yaml_PARSE_BLOCK_MAPPING_VALUE_STATE               // Expect a block mapping value.
+	yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE         // Expect the first entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE               // Expect an entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE   // Expect a key of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE   // Expect the and of an ordered mapping entry.
+	yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE            // Expect the first key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_KEY_STATE                  // Expect a key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_VALUE_STATE                // Expect a value of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE          // Expect an empty value of a flow mapping.
+	yaml_PARSE_END_STATE                               // Expect nothing.
+)
+
+func (ps yaml_parser_state_t) String() string {
+	switch ps {
+	case yaml_PARSE_STREAM_START_STATE:
+		return "yaml_PARSE_STREAM_START_STATE"
+	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+		return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_START_STATE:
+		return "yaml_PARSE_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+		return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
+	case yaml_PARSE_DOCUMENT_END_STATE:
+		return "yaml_PARSE_DOCUMENT_END_STATE"
+	case yaml_PARSE_BLOCK_NODE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_STATE"
+	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
+	case yaml_PARSE_FLOW_NODE_STATE:
+		return "yaml_PARSE_FLOW_NODE_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
+	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
+	case yaml_PARSE_END_STATE:
+		return "yaml_PARSE_END_STATE"
+	}
+	return "<unknown parser state>"
+}
+
+// This structure holds aliases data.
+type yaml_alias_data_t struct {
+	anchor []byte      // The anchor.
+	index  int         // The node id.
+	mark   yaml_mark_t // The anchor mark.
+}
+
+// The parser structure.
+//
+// All members are internal. Manage the structure using the
+// yaml_parser_ family of functions.
+type yaml_parser_t struct {
+
+	// Error handling
+
+	error yaml_error_type_t // Error type.
+
+	problem string // Error description.
+
+	// The byte about which the problem occured.
+	problem_offset int
+	problem_value  int
+	problem_mark   yaml_mark_t
+
+	// The error context.
+	context      string
+	context_mark yaml_mark_t
+
+	// Reader stuff
+
+	read_handler yaml_read_handler_t // Read handler.
+
+	input_file io.Reader // File input data.
+	input      []byte    // String input data.
+	input_pos  int
+
+	eof bool // EOF flag
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	unread int // The number of unread characters in the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The input encoding.
+
+	offset int         // The offset of the current position (in bytes).
+	mark   yaml_mark_t // The mark of the current position.
+
+	// Scanner stuff
+
+	stream_start_produced bool // Have we started to scan the input stream?
+	stream_end_produced   bool // Have we reached the end of the input stream?
+
+	flow_level int // The number of unclosed '[' and '{' indicators.
+
+	tokens          []yaml_token_t // The tokens queue.
+	tokens_head     int            // The head of the tokens queue.
+	tokens_parsed   int            // The number of tokens fetched from the queue.
+	token_available bool           // Does the tokens queue contain a token ready for dequeueing.
+
+	indent  int   // The current indentation level.
+	indents []int // The indentation levels stack.
+
+	simple_key_allowed bool                // May a simple key occur at the current position?
+	simple_keys        []yaml_simple_key_t // The stack of simple keys.
+
+	// Parser stuff
+
+	state          yaml_parser_state_t    // The current parser state.
+	states         []yaml_parser_state_t  // The parser states stack.
+	marks          []yaml_mark_t          // The stack of marks.
+	tag_directives []yaml_tag_directive_t // The list of TAG directives.
+
+	// Dumper stuff
+
+	aliases []yaml_alias_data_t // The alias data.
+
+	document *yaml_document_t // The currently parsed document.
+}
+
+// Emitter Definitions
+
+// The prototype of a write handler.
+//
+// The write handler is called when the emitter needs to flush the accumulated
+// characters to the output.  The handler should write @a size bytes of the
+// @a buffer to the output.
+//
+// @param[in,out]   data        A pointer to an application data specified by
+//                              yaml_emitter_set_output().
+// @param[in]       buffer      The buffer with bytes to be written.
+// @param[in]       size        The size of the buffer.
+//
+// @returns On success, the handler should return @c 1.  If the handler failed,
+// the returned value should be @c 0.
+//
+type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
+
+type yaml_emitter_state_t int
+
+// The emitter states.
+const (
+	// Expect STREAM-START.
+	yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
+
+	yaml_EMIT_FIRST_DOCUMENT_START_STATE       // Expect the first DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_START_STATE             // Expect DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_CONTENT_STATE           // Expect the content of a document.
+	yaml_EMIT_DOCUMENT_END_STATE               // Expect DOCUMENT-END.
+	yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE   // Expect the first item of a flow sequence.
+	yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE         // Expect an item of a flow sequence.
+	yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE     // Expect the first key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_KEY_STATE           // Expect a key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE  // Expect a value for a simple key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_VALUE_STATE         // Expect a value of a flow mapping.
+	yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE  // Expect the first item of a block sequence.
+	yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE        // Expect an item of a block sequence.
+	yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE    // Expect the first key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_KEY_STATE          // Expect the key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_VALUE_STATE        // Expect a value of a block mapping.
+	yaml_EMIT_END_STATE                        // Expect nothing.
+)
+
+// The emitter structure.
+//
+// All members are internal.  Manage the structure using the @c yaml_emitter_
+// family of functions.
+type yaml_emitter_t struct {
+
+	// Error handling
+
+	error   yaml_error_type_t // Error type.
+	problem string            // Error description.
+
+	// Writer stuff
+
+	write_handler yaml_write_handler_t // Write handler.
+
+	output_buffer *[]byte   // String output data.
+	output_file   io.Writer // File output data.
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The stream encoding.
+
+	// Emitter stuff
+
+	canonical   bool         // If the output is in the canonical style?
+	best_indent int          // The number of indentation spaces.
+	best_width  int          // The preferred width of the output lines.
+	unicode     bool         // Allow unescaped non-ASCII characters?
+	line_break  yaml_break_t // The preferred line break.
+
+	state  yaml_emitter_state_t   // The current emitter state.
+	states []yaml_emitter_state_t // The stack of states.
+
+	events      []yaml_event_t // The event queue.
+	events_head int            // The head of the event queue.
+
+	indents []int // The stack of indentation levels.
+
+	tag_directives []yaml_tag_directive_t // The list of tag directives.
+
+	indent int // The current indentation level.
+
+	flow_level int // The current flow level.
+
+	root_context       bool // Is it the document root context?
+	sequence_context   bool // Is it a sequence context?
+	mapping_context    bool // Is it a mapping context?
+	simple_key_context bool // Is it a simple mapping key context?
+
+	line       int  // The current line.
+	column     int  // The current column.
+	whitespace bool // If the last character was a whitespace?
+	indention  bool // If the last character was an indentation character (' ', '-', '?', ':')?
+	open_ended bool // If an explicit document end is required?
+
+	// Anchor analysis.
+	anchor_data struct {
+		anchor []byte // The anchor value.
+		alias  bool   // Is it an alias?
+	}
+
+	// Tag analysis.
+	tag_data struct {
+		handle []byte // The tag handle.
+		suffix []byte // The tag suffix.
+	}
+
+	// Scalar analysis.
+	scalar_data struct {
+		value                 []byte              // The scalar value.
+		multiline             bool                // Does the scalar contain line breaks?
+		flow_plain_allowed    bool                // Can the scalar be expessed in the flow plain style?
+		block_plain_allowed   bool                // Can the scalar be expressed in the block plain style?
+		single_quoted_allowed bool                // Can the scalar be expressed in the single quoted style?
+		block_allowed         bool                // Can the scalar be expressed in the literal or folded styles?
+		style                 yaml_scalar_style_t // The output style.
+	}
+
+	// Dumper stuff
+
+	opened bool // If the stream was already opened?
+	closed bool // If the stream was already closed?
+
+	// The information associated with the document nodes.
+	anchors *struct {
+		references int  // The number of references.
+		anchor     int  // The anchor id.
+		serialized bool // If the node has been emitted?
+	}
+
+	last_anchor_id int // The last assigned anchor id.
+
+	document *yaml_document_t // The currently emitted document.
+}
diff --git a/vendor/gopkg.in/yaml.v2/yamlprivateh.go b/vendor/gopkg.in/yaml.v2/yamlprivateh.go
new file mode 100644
index 0000000..8110ce3
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yamlprivateh.go
@@ -0,0 +1,173 @@
+package yaml
+
+const (
+	// The size of the input raw buffer.
+	input_raw_buffer_size = 512
+
+	// The size of the input buffer.
+	// It should be possible to decode the whole raw buffer.
+	input_buffer_size = input_raw_buffer_size * 3
+
+	// The size of the output buffer.
+	output_buffer_size = 128
+
+	// The size of the output raw buffer.
+	// It should be possible to encode the whole output buffer.
+	output_raw_buffer_size = (output_buffer_size*2 + 2)
+
+	// The size of other stacks and queues.
+	initial_stack_size  = 16
+	initial_queue_size  = 16
+	initial_string_size = 16
+)
+
+// Check if the character at the specified position is an alphabetical
+// character, a digit, '_', or '-'.
+func is_alpha(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
+}
+
+// Check if the character at the specified position is a digit.
+func is_digit(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9'
+}
+
+// Get the value of a digit.
+func as_digit(b []byte, i int) int {
+	return int(b[i]) - '0'
+}
+
+// Check if the character at the specified position is a hex-digit.
+func is_hex(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
+}
+
+// Get the value of a hex-digit.
+func as_hex(b []byte, i int) int {
+	bi := b[i]
+	if bi >= 'A' && bi <= 'F' {
+		return int(bi) - 'A' + 10
+	}
+	if bi >= 'a' && bi <= 'f' {
+		return int(bi) - 'a' + 10
+	}
+	return int(bi) - '0'
+}
+
+// Check if the character is ASCII.
+func is_ascii(b []byte, i int) bool {
+	return b[i] <= 0x7F
+}
+
+// Check if the character at the start of the buffer can be printed unescaped.
+func is_printable(b []byte, i int) bool {
+	return ((b[i] == 0x0A) || // . == #x0A
+		(b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
+		(b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
+		(b[i] > 0xC2 && b[i] < 0xED) ||
+		(b[i] == 0xED && b[i+1] < 0xA0) ||
+		(b[i] == 0xEE) ||
+		(b[i] == 0xEF && // #xE000 <= . <= #xFFFD
+			!(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
+			!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
+}
+
+// Check if the character at the specified position is NUL.
+func is_z(b []byte, i int) bool {
+	return b[i] == 0x00
+}
+
+// Check if the beginning of the buffer is a BOM.
+func is_bom(b []byte, i int) bool {
+	return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
+}
+
+// Check if the character at the specified position is space.
+func is_space(b []byte, i int) bool {
+	return b[i] == ' '
+}
+
+// Check if the character at the specified position is tab.
+func is_tab(b []byte, i int) bool {
+	return b[i] == '\t'
+}
+
+// Check if the character at the specified position is blank (space or tab).
+func is_blank(b []byte, i int) bool {
+	//return is_space(b, i) || is_tab(b, i)
+	return b[i] == ' ' || b[i] == '\t'
+}
+
+// Check if the character at the specified position is a line break.
+func is_break(b []byte, i int) bool {
+	return (b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
+}
+
+func is_crlf(b []byte, i int) bool {
+	return b[i] == '\r' && b[i+1] == '\n'
+}
+
+// Check if the character is a line break or NUL.
+func is_breakz(b []byte, i int) bool {
+	//return is_break(b, i) || is_z(b, i)
+	return (        // is_break:
+	b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		// is_z:
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, or NUL.
+func is_spacez(b []byte, i int) bool {
+	//return is_space(b, i) || is_breakz(b, i)
+	return ( // is_space:
+	b[i] == ' ' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, tab, or NUL.
+func is_blankz(b []byte, i int) bool {
+	//return is_blank(b, i) || is_breakz(b, i)
+	return ( // is_blank:
+	b[i] == ' ' || b[i] == '\t' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Determine the width of the character.
+func width(b byte) int {
+	// Don't replace these by a switch without first
+	// confirming that it is being inlined.
+	if b&0x80 == 0x00 {
+		return 1
+	}
+	if b&0xE0 == 0xC0 {
+		return 2
+	}
+	if b&0xF0 == 0xE0 {
+		return 3
+	}
+	if b&0xF8 == 0xF0 {
+		return 4
+	}
+	return 0
+
+}