language: node_js
node_js:
  - 6
cache:
  directories:
    - node_modules
install:
  - npm install
  - npm install -g grunt-cli
before_script:
  - grunt lint
script:
  - grunt test

language: node_js
node_js:
  - 4
  - 6
cache:
  directories:
    - node_modules
install:
  - npm install
  - npm install -g grunt-cli
before_script:
  - grunt lint
script:
  - grunt test

Add build test for node-v4.
Add build test for node-v4.
