zachfeldman/mailgun_email_validator — pull request #2 by theunraveler (2014-12-10 16:27:37+00:00)
Title: Removing Gemfile.lock file

As per http://yehudakatz.com/2010/12/16/clarifying-the-roles-of-the-gemspec-and-gemfile/,
you should not check your Gemfile.lock file into the repo when developing gems.