danielamitay/DAKeyboardControl — pull request #5 by zman0900 (2012-06-15 12:18:25+00:00)
Title: Don't crash on pre iOS 5

This allows the keyboard control classes to run on iOS 4.2 and later, maybe
older. The swiping doesn't actually work for pre iOS 5, but it also doesn't
crash so an app can support swipe down keyboard and old hardware.