language: ruby
rvm:
  - "2.2.4"
script: bundle exec rspec spec

language: ruby
env:
  - "RAILS_VERSION=3.2.22.5"
  - "RAILS_VERSION=4.2.11"
  - "RAILS_VERSION=5.2.3"
  - "RAILS_VERSION=master"
rvm:
  - "2.2.4"
script: bundle exec rspec spec

Expand Travis testing to multiple Rails.
Expand Travis testing to multiple Rails.
