:golf:

Ruby "2.2" now points to 2.2.0-preview1, and "2.1" to 2.1.3 on .org. If you want to test older version, say "2.1.2" specifically.
https://twitter.com/travisci/statuses/513233940442644480
Merge pull request #45 from sue445/feature/tweak_travis

:golf: