launch grunt on background

Author: siddii

.travis.yml

@@ -4,12 +4,7 @@ node_js:
 
 before_script:
   - npm install -g grunt-cli
-  - npm install
-  - "export DISPLAY=:99.0"
-  - "sh -e /etc/init.d/xvfb start"
-  - sleep 3
-  - grunt connect:testserver  # start a Web server
-  - sleep 3
+  - grunt &
 
 script:
   - grunt karma:unit