language: ruby
rvm:
  - 2.1.0
  - 2.0.0
  - 1.9.3
  - rbx-2
  - jruby-19mode

gemfile:
  - Gemfile

branches:
  only:
    - master

script: "bundle exec rake test"

language: ruby
rvm:
  - 2.4.0
  - 2.3.3
  - 2.2.6
  - 2.1.10
  - 2.0.0
  - 1.9.3
  - rbx-2
  - jruby-19mode

gemfile:
  - Gemfile

branches:
  only:
    - master

script: "bundle exec rake test"

Test against each Rubies 2.1 or above
Test against each Rubies 2.1 or above

I added the following version.

- 2.1.10
- 2.2.6
- 2.3.3
- 2.4.0
