Add Travis CI support (#73)

* Add Travis CI support

Simple build test

* ignore .travis.yml in Docker context

.dockerignore

@@ -7,3 +7,4 @@ CONTRIBUTING.md
 Changelog.md
 Makefile
 docker-compose.yml
+.travis.yml

.travis.yml

@@ -0,0 +1,28 @@
+sudo: required
+
+services:  
+    - docker
+
+env:  
+    global:
+        - DOCKER_VERSION=1.10.1-0~trusty
+        - DOCKER_COMPOSE_VERSION=1.7.1
+
+before_install:  
+    # list docker-engine versions
+    - apt-cache madison docker-engine
+
+    # upgrade docker-engine to specific version
+    - sudo apt-get -o Dpkg::Options::="--force-confnew" install -y docker-engine=${DOCKER_VERSION}
+
+    # reinstall docker-compose at specific version
+    - sudo rm /usr/local/bin/docker-compose
+    - curl -L https://github.com/docker/compose/releases/download/${DOCKER_COMPOSE_VERSION}/docker-compose-`uname -s`-`uname -m` > docker-compose
+    - chmod +x docker-compose
+    - sudo mv docker-compose /usr/local/bin
+
+script:  
+    - docker-compose build
+
+notifications:
+  email: false