Merge pull request #9 from wileykestner/master

Trim task can now handle files that git senses have moved
Merge pull request #10 from wileykestner/master

Notify potential users that thrust requires ruby 1.9.2 or higher
Merge pull request #11 from wileykestner/master

Filtering 'log backing file' cruft out of xcodebuild commands
Merge pull request #12 from wileykestner/master

Make thrust ruby 1.8.7 compatible by removing named regex groups