language: ruby
script: bundle exec rspec spec
cache: bundler
rvm:
  - 2.1

language: ruby
script: bundle exec rspec spec
cache: bundler
rvm:
  - 2.2
  - 2.3.4
  - 2.4.1

Test on MRI 2.2, 2.3, 2.4. No more testing against 2.1.
Test on MRI 2.2, 2.3, 2.4. No more testing against 2.1.
