Set clipsToBounds = YES on the side menu view.

This prevents the screenshot view appearing outside of the bounds of the controller's view - for example, when used as the master controller in a UISplitViewController
Merge pull request #34 from blork/clips-to-bounds

Set clipsToBounds = YES on the side menu view.
A complete rewrite, close #24, close #28, close #32, close #35
Remove unused files
Add option to disable content view scale, close #31
Fix g > YES
Fix compiler error with iOS 6 SDK
Add common functions
Add parallax effects
Update assets
Update readme
Update status bar style on pan
Add storyboards example
Suppress deprecation warning in iOS 7
Version bump (3.1.1)
Ability to reassign contentViewController, close #36
Ability to reassign menu view controller
Version bump (3.1.2)
Ability to set background image after menu view did load, close #37
Version bump (3.1.3)