language: node_js
node_js:
  - "6"
  - "4"
before_install:
  - export DISPLAY=:99.0
  - sh -e /etc/init.d/xvfb start
notifications:
  email: false

language: node_js
node_js:
  - "8"
  - "6"
  - "4"
before_install:
  - export DISPLAY=:99.0
  - sh -e /etc/init.d/xvfb start
notifications:
  email: false

Add Node 8 to the Travis tests.
Add Node 8 to the Travis tests.
