version 0.007: added stage3d's AbstractView and AbstractViewController
Improved utils: ArrayUtil(radom 2D), CSVUtil, DrawUtil(fix), IsoUtil(vector3d), LoaderUtil(urlloader routine), PlaceUtil, RegExpUtil(without ext), ShareUtil(FB OG)
Improved GUI: EmptyButton, GrowButton, SubButton(toggable), VMenu(rewritten), SelectableTextFieldLabel(enable/disable)
Improved Managers: AssetManager(group file loaded signal)