language: node_js
node_js:
  - "5"
  - "4"
before_script:
  - npm install -g mocha
notifications:
  email:
    on_success: never
    on_failure: change

language: node_js
node_js:
  - "6"
  - "5"
  - "4"
before_script:
  - npm install -g mocha
notifications:
  email:
    on_success: never
    on_failure: change

Add node.js 6 for testing
Add node.js 6 for testing

