thoughtbot/liftoff — pull request #115 by gfontenot (2014-03-18 15:40:56+00:00)
Title: Disable RubyGems

Apparently, there were some cases where we were getting conflicts with the
Xcodeproj native C extensions because RubyGems insisted on loading itself. By
explicitly disabling RubyGems inside the shebang, we can make sure that this
doesn't happen.

Fixes #113 (amazingly)