thoughtbot/shoulda — pull request #248 by mcmire (2014-06-20 16:45:51+00:00)
Title: Update instructions for shoulda-matchers

The instructions on how to install shoulda-matchers in your project have
changed: for best results, now you must manually require it in your
spec_helper (which has actually become rails_helper in RSpec 3.x).

For more information: