language: ruby
cache: bundler

rvm:
  - 2.2.4
  - 2.3.0

gemfile:
  - Gemfile.4.0
  - Gemfile.4.1
  - Gemfile.4.2
  - Gemfile.5.0

language: ruby
cache: bundler

rvm:
  - 2.2.4
  - 2.3.2

gemfile:
  - Gemfile.4.0
  - Gemfile.4.1
  - Gemfile.4.2
  - Gemfile.5.0
  - Gemfile.5.1

Update Travis config file to test with Rails 5.1
Update Travis config file to test with Rails 5.1
