Hendrik Leppkes:
	- Reword an option string
	- Add an option to control the direction of button flyouts.
	- Don't change hide-state of the vehicle ui related frames
	- Fix disabling of the Blizzard Vehicle UI
	- Disable mouse interaction with the MainMenuBar
	- Validate that a state driver is set before trying to do string replaces in it.
	- Add support for LibDualSpec-1.0
	- Load LibKeyBound before LibActionButton
	- Update WoWAce project URL
	- Remove reference to long-removed ActionButton.lua
	- Remove pre-4.3 compat checks
	- Update copyright header
