message: using chrome addon
diff: @@ -4,14 +4,12 @@ language: node_js
  node_js:
  - "7"
  +addons:
  + chrome: stable
  before_install:
  - - export CHROME_BIN=/usr/bin/google-chrome
  + - export CHROME_BIN=/usr/bin/google-chrome-stable
  - export DISPLAY=:99.0
  - sh -e /etc/init.d/xvfb start
  - - sudo apt-get update
  - - sudo apt-get install -y libappindicator1 fonts-liberation
  - - wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
  - - sudo dpkg -i google-chrome*.deb
  before_script:
  - cd gulp
  - npm install -g karma
  