add Travis-CI integration

Author: calvinlfer

.travis.yml

@@ -0,0 +1,17 @@
+language: node_js
+
+node_js:
+ - 8.1.3
+
+sudo: required
+
+services:
+- docker
+
+before_script:
+- docker-compose up -d
+- sleep 40
+- npm install -g gulp
+
+script:
+- gulp default