language: ruby
rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - 2.0.0
  - jruby-19mode
  - rbx-19mode

language: ruby
rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - 2.0.0
  - jruby-19mode
  - rbx

Use rbx instead of rbx-19mode
Use rbx instead of rbx-19mode

rbx-19mode is not supported anymore.
