language: node_js
node_js:
 - "6"
 - "5.1"
before_script:
 - npm install grunt-cli -g
script:
- grunt
cache:
 directories:
  - node_modules

language: node_js
node_js:
 - "7"
 - "6"
 - "5.1"
before_script:
 - npm install grunt-cli -g
script:
- grunt
cache:
 directories:
  - node_modules

Add version 7 for node in Travis
Add version 7 for node in Travis
