before_install:
  - gem install bundler

rvm:
  - 2.2.7
  - 2.3.4
  - 2.4.1

env:
  - RAILS_VERSION="~> 4.2"
  - RAILS_VERSION="~> 5.0"

before_install:
  - gem install bundler

rvm:
  - 2.2.9
  - 2.3.6
  - 2.4.3
  - 2.5.0

env:
  - RAILS_VERSION="~> 4.2"
  - RAILS_VERSION="~> 5.0"

Update ruby versions in build matrix
Update ruby versions in build matrix
