message: update travis ci config
diff: language: node_js
  node_js:
  - '8'
  -
  +services:
  + - xvfb
  before_install:
  - export CHROME_BIN=chromium-browser
  - export DISPLAY=:99.0
  - - sh -e /etc/init.d/xvfb start
  script: npm run jest -ci
  \ No newline at end of file
  