rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - rbx
  - ree
  - ruby-head

language: ruby
rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - rbx
  - ree
  - ruby-head
  - rbx-18mode
  - rbx-19mode
matrix:
  allow_failures:
    - rvm: rbx-18mode
    - rvm: rbx-19mode
Allow rbx to fail on Travis
Allow rbx to fail on Travis

If they pass let's remove the allowed failures.