before_install:
  - sudo apt-get update
  - sudo apt-get install graphicsmagick
language: node_js
node_js:
  - 0.10
  - 0.11

before_install:
  - sudo apt-get update
  - sudo apt-get install graphicsmagick
language: node_js
node_js:
  - 0.12
  - 4.0
  - 5.0
  - 6.0

Add node version to test.
Add node version to test.
