language: node_js
node_js:
  - "4"
  - "6"
  - "8"
  - "9"
before_install:
  - rvm install 2.2.2
before_script:
  - gem install sass
  - npm install
script:
  - npm test

language: node_js
node_js:
  - "6"
  - "8"
  - "9"
  - "10"
before_install:
  - rvm install 2.2.2
before_script:
  - gem install sass
  - npm install
script:
  - npm test

Remove support for Node 4, add support for Node 10
Remove support for Node 4, add support for Node 10
