rvm:
  - 1.9.2
  - 1.9.3
  - 2.0.0
branches:
  only:
    - master
before_install:
  - gem install bundler

rvm:
  - 1.9.2
  - 1.9.3
  - 2.0.0
  - 2.1
  - 2.2
branches:
  only:
    - master
before_install:
  - gem install bundler

Add more Rubies to CI
Add more Rubies to CI

(Travis doesn't have Ruby 2.3 yet)
