language: node_js
node_js:
  - "stable"
  - "4.1"
  - "4.0"
  - "0.12"
  
language: node_js
node_js:
  - "stable"
  - "4.2"
  - "4.1"
  - "4.0"

Drop supporting node v0.12.x regarding to ES6
Drop supporting node v0.12.x regarding to ES6
