Fixed an incorrectly specified reference to the UISearchDisplayController.
Update search contents when selected scope button changes.
Fixed crash caused by not setting delegate references to nil.
Force a reload in a FRC.
Added method which returns the currently active `NSFetchedResultsController` (i.e. regular or search).
Altered method to reload both FRCs/
Changed animation style.
Prevent overreleasing of controller.
Added method for retrieving the 'active' table view.
Added method for retrieving a new fetch request with a given predicate.
Added a helper method for quickly executing a fetch request.
Added an "empty view" which will be shown when there is no data.
Added static deleteAll method.
Memory management tweaks.
Removed reference to 'self' inside a block.
Better naming convention (ARC).
Don't automatically scroll (iOS 7 change).
Removed Mac OS X code.
Simple failure handling - delete the store if we cannot migrate. TODO: provide a way for the user to configure this behaviour.
Made deleteAll async again.