(iOS) If no cores were found to support a file a list of all cores will be displayed instead.
(iOS) Combine RAPauseMenu into RAMainMenu.  RAGameView is no longer displayed in the UINavigationController but is instead swapped with the navigation controller as needed.
(iOS)
    Fix iOS 6 UI layout issues caused by previous commit.
    Reduce use of dot notation in apple/iOS/platform.m for stylistic continuity with OSX code.
(iOS) Change method used to inspect memory for iOS 6 keyboard events.