rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - ree

language: ruby
rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - ree
  - rbx-18mode
  - rbx-19mode
matrix:
  allow_failures:
    - rvm: rbx-18mode
    - rvm: rbx-19mode

Allow rbx 1.8 & 1.9 modes to fail on Travis
Allow rbx 1.8 & 1.9 modes to fail on Travis

In support of rubinius/rubinius#2006 we're trying to get important 
gems with C-extensions to test on Rubinius.

Thanks for your consideration!