added methods

ScaleUnitSquareToSize
SetNeedsDisplay
modified ActivateIgnoringOtherApps
renamed to SetActionButtonTitle
modified AddObserver

now protected
modified class_addMethod

made it an extender
modified class_addProtocol

now an extender
removed other form of the method
modified DefaultDistributedNotificationCenter

changed from private to protected
removed DeliverNotification(ptr)
modified HasActionButton
renamed to SetHasActionButton
modified InformativeText
renamed to SetInformativeText
renamed to SetAlternate
modified IsRemote
renamed to SetRemote
modified NSClassFromString

changed from global to protected
modified NSSelectorFromString

changed from global to protected
deleted objc_allocateClassPair
modified AddObserver
modified alloc