Adirelle:
	- Refactored big chunks of internals with a more object-oriented approach.
	This should fix some issues with LibActionButton support.
	S**tstorm expected.
	- Update overglow on ActionButton_UpdateOverlayGlow instead of ActionButton_HideOverlayGlow.
	- Added my own overlay glow system to avoid tainting Blizzard's one.
	- Updated the README file to lead to ticket #286 about "addon blocked" messages.
	- Added Monks' Power Guard.
