bundler/bundler — pull request #2783 by sanemat (2013-12-27 16:15:15+00:00)
Title: Test against ruby 2.1.0-rc1

This is workaround,
travis-ci rolls out 2.1.0 in the next couple of days
https://github.com/travis-ci/travis-rubies/commit/e8887817f323252548d5890734947a59bc827d47