Mac v6 beta test

[cbk1994]

The new version is working great for me. Thanks for the updates, Stefan.

edit: there's still the bug where closing external windows via "close" buttons (i.e. destroy()ing them) doesn't actually destroy them and the window remains. None of the controls are active or can be clicked and the OS close/minimize/restore buttons at the top don't work. The title bar remains inactive even if you click on it.