Add initial .travis.yml

.travis.yml

@@ -0,0 +1,16 @@
+language: bash
+services: docker
+
+install:
+  - git clone https://github.com/docker-library/official-images.git ~/official-images
+
+before_script:
+  - env | sort
+  - image="luzifer/teamspeak3:latest"
+
+script:
+  - travis_retry docker build -t "$image" .
+  - ~/official-images/test/run.sh "$image"
+
+after_script:
+  - docker images