mikel/mail — pull request #324 by michaelklishin (2012-01-10 12:35:39+00:00)
Title: Update Rubinius aliases in .travis.yml

rbx and rbx-2.0 still work but are both just aliases for rbx-18mode. I added rbx-19mode, it still may be quite
unstable for you. Feel free to disable. Finally, maybe try adding ruby-head.