Shefki:
	Ticket 490: Config mode doesn't respect CastBar's show icon
	configuration.
	Use the proper config value to pad in both directions for outside corner
	anchors.
	Ticket 261: Inside bottom anchors were using padding in the opposite direction it
	should have been.
	Small code cleanup on some of the event code.
	Fix problems with pet frames not fully updating becuase not all the
	information is available when UNIT_PET fires.
	Tab the Groups configuration for usability reasons.  People keep
	accidentally using the Unit group dropdown to try and change the current
	group.  This of course causes great confusion.
