added some documentation for GAE

README.md

@@ -90,3 +90,44 @@ Example: redis+tcp://auth:mypass@redis.example.com:6379/5?prefix=cloudkeys::
     ```
 
 3. Set your configuration variables in the Heroku apps dashboard (see env variables in usage section above)
+
+## Install on Google App Engine
+
+1. Remove the vendor folder and get the current libraries
+
+    ```
+    # rm -r vendor && go get -v -u ./...
+    ```
+
+2. Fake os.Args in config.go
+
+    ```
+$ git diff config.go
+diff --git a/config.go b/config.go
+index f2bbf2e..542c276 100644
+--- a/config.go
++++ b/config.go
+@@ -2,6 +2,7 @@ package main
+ 
+ import (
+        "net/url"
++       "os"
+ 
+        "github.com/Luzifer/rconfig"
+ )
+@@ -24,6 +25,8 @@ func (c config) ParsedStorage() (*url.URL, error) {
+ }
+ 
+ func loadConfig() *config {
++       os.Args = []string{os.Args[0]}
++
+        cfg := &config{}
+        rconfig.Parse(cfg)
+        return cfg
+    ```
+
+3. Deploy on App Engine
+
+		```
+		# appcfg.py update .
+		```