ruby/www.ruby-lang.org — pull request #864 by stomar (2014-10-24 19:11:16+00:00)
Title: Use Ruby 2.1.3 in all environments

@hsbt

The DEV environment apparently has been used for travis, but it was removed with 5eb22b5ca651e4e07869d7a5f5bd9262d5bd037d.
Is it still necessary to use other Ruby versions?