language: ruby
rvm:
  - 1.9.3
  - 2.0.0

language: ruby
before_install:
 - gem update bundler
rvm:
  - 1.9.3
  - 2.0.0
  - 2.1.8
  - 2.2.4
  - 2.3.0

Test on more Rubies. Update bundler on Travis to avoid an error.
Test on more Rubies. Update bundler on Travis to avoid an error.
