language: node_js
node_js:
  - 0.6
  - 0.8
  - 0.9
  - 4.0
  - 4.1

language: node_js
node_js:
  - 0.6
  - 0.8
  - 0.9
  - 4.0
  - 4.1
  - 5.0
  - 6.0
  - 7.0
  - 8.0
  - 9.5

Test on too many node.js version.
Test on too many node.js version.