Added UIViewController category to access container view
Styling
Revised comments
Traverses up parentViewControllers to find the container view
Improved category method to account for UISplitViewController
Fixed an issue not detecting parentView
Moved UIViewController category to its own file
Added UIViewController category to main header. Updated all examples to use new convenience method
Changed the copyright information
Merge pull request #91 from chourobin/feature/category

Added a convenience method to allow access to MFMenuContainerViewController