Update the Travis config to run tests

.travis.yml

@@ -4,9 +4,16 @@ language: node_js
 node_js:
   - "0.10"
 
+# Services setup
+services:
+  - mongodb
+
 # Build script
 before_script:
   - npm install -g grunt-cli
+  - cp config/test.sample.json config/test.json
+  - grunt start-test &
+  - sleep 5 # give server time to start
 script: 'grunt ci'
 
 # Notifications