Moved root view controller to a container view

Now the root view controller is added to a container view. This is to support more control over the interaction of the view controller.
Merge branch 'refs/heads/master' into container

Conflicts:
	PPRevealSideViewController/PPRevealSideviewController/PPRevealSideViewController.h
	PPRevealSideViewController/PPRevealSideviewController/PPRevealSideViewController.m
Added ability to disable user interaction on center view controller

There is now an option to disable user interaction on the center view controller when the side view controller is open. This will still allow the controller to be closed with either a tap or a pan, but will keep any controls on the view controller from being interacted with.