Move FlxSignal macro into separate class for cleaner importing
Make FlxDestroyUtil array functions not terriblemore efficient and less redundant
Merge branch 'dev' of https://github.com/HaxeFlixel/flixel into dev

Conflicts:
	flixel/util/FlxDestroyUtil.hx
Empty the arrays a more efficient way, plus some formatting
FlxAngle: Added angleFromFacing. FlxVelocity: DRY
Removed velocity by mistake, bring it back
fix android key compile error, still broken
fix divergent repo errors
allow FlxAndroidKeyList to access FlxAndroidKeys
restore preventDefaultBackAction
AndroidKeys: BACK and MENU work, can prevent default BACK action, ANY does not work
Added default speed.
use stored iterator for values
revert using maps for input, use alternate method for arrays
Fix default end values for FlxRangeBounds and FlxPointRangeBounds
fix android input error
FlxAndroidKeys: Fix documentation
Remove redundant Null<T>s
FlxAngle#angleFromfacing: Added diagonal cases
Haxe is too stupid...
(you cannot switch on expressions, even with inlined vars)