Make MouseEventManager compatible with FlxObject, closes #823
Merge branch 'dev' of https://github.com/HaxeFlixel/flixel into MouseEventManager

Conflicts:
	flixel/plugin/MouseEventManager.hx
MouseEventManager: use private class instead of typedef
Make ObjectMouseData's type FlxObject instead of T:FlxObject
Merge branch 'dev' of https://github.com/HaxeFlixel/flixel into MouseEventManager

Conflicts:
	flixel/FlxBasic.hx
Fix some things that were undone in the merge conflict
Merge pull request #898 from Gama11/MouseEventManager

Make MouseEventManager compatible with FlxObject, closes #823