language: node_js
node_js:
  - "6.3"
install:
  - npm install
script:
  - npm test

language: node_js
node_js:
  - "7"
  - "6"
  - "4"
install:
  - npm install
script:
  - npm test

Add Node 4 and 7 as test targets
chore(tests): Add Node 4 and 7 as test targets
