Merge pull request #5 from ksuther/master

Fixed DCIntrospect not being able to activate after a UIMenuController hides.
Code cleanup to use iOS 6 constants, auto-synthesize, and dispatch_once.
Fixed arrow key navigation on iOS 6.

From @ksuther's commit at https://github.com/ksuther/DCIntrospect/commit/529fc70f4a516a691f3c74f41185725c83556338
Merge branch 'master' of github.com:logicreative/DCIntrospect-ARC
Fixed viewsAtPoint:inView: to more correctly handle internal container views on newer versions of iOS.
Making inputTextView hidden doesn't work on newer versions of iOS. Position inputTextView so it's not visible in the window instead.