language: node_js
node_js:
  - '5'
  - '4'
before_install:
  - npm install -g npm@latest
after_success:
  - npm run codecov

language: node_js
node_js:
  - '6'
  - '5'
  - '4'
before_install:
  - npm install -g npm@latest
after_success:
  - npm run codecov

Add Node 6 to Travis
Add Node 6 to Travis
