Make compatible with ARC. Also remove some unneeded synthesize statements and all ivars.
Formatting
Undo formatting
Add a mechanism to allow clients to register view classes they do not wish TPMultiLayoutViewController to descend into.
Don't import a project-specific header that isn't actually used anyway.
Add the ability to ignore views which have a negative tag.
Properly animate the changes as they are applied.
Documentation for some of the new features I've added.
Don't implement viewDidUnload as it is now deprecated and Apple even recommends against its use in earlier versions of iOS. Also, keep references to the portrait and landscape views around as they may be useful to subclasses.
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