language: ruby
script: bundle exec rspec
rvm:
  - 2.0.0
  - 2.1.8
  - 2.2.0
  - 2.3.0
branches:
  only:
    - master


language: ruby
script: bundle exec rspec
rvm:
  - 2.0.0
  - 2.1.8
  - 2.2.0
  - 2.3.3
  - 2.4.0
branches:
  only:
    - master


Add Ruby 2.4 to builds and upgrade from 2.3.0 to 2.3.3
Add Ruby 2.4 to builds and upgrade from 2.3.0 to 2.3.3
