whitequark/parser — pull request #153 by yujinakayama (2014-06-10 08:12:45+00:00)
Title: Build against latest Ruby 2.1 on Travis

In contrast to prior versions, we can specify the latest Ruby 2.1
as `2.1` due to the new versioning policy.

https://github.com/travis-ci/travis-ci/issues/2220#issuecomment-42263699