before_install:
  - "export DISPLAY=:99.0"
  - "sh -e /etc/init.d/xvfb start"
env:
  - "RAILS_VERSION=4.2.8"
  - "RAILS_VERSION=5.0.3"
  - "RAILS_VERSION=5.1.1"
rvm:
  - 2.2.7
  - 2.3.4