message: Install latest phantomjs-prebuilt for CI
diff: sudo: required
  dist: trusty
  language: node_js
  +
  node_js:
  - "6"
  before_install:
  + - "npm install phantomjs-prebuilt"
  - "phantomjs --version"
  - "export DISPLAY=:99.0"
  - "sh -e /etc/init.d/xvfb start"
  + - sleep 3 # give xvfb some time to start
  install:
  - npm install
  