CocoaPods/Core — pull request #200 by Kapin (2014-11-28 06:11:21+00:00)
Title: [Linter] Cleanup the github sources checks

Code climate hates this function so I pulled it apart a little bit. Also since you can't have a gist that starts with `www.`, added a check for
that as well. Related to #48 as this is another small improvement to the linter.