[winecfg 5] Implement transactions support,remove some crack x11drv prefs,complete desktop sizing code

[Ivan Leo Murray-Smith]

.The UI
> standard on free software desktops for instant apply dialogs is to have
> just a Close dialog, with a Revert button in cases where the user might
> not be able to undo the changes themselves. For the main window, just a
> Close button is enough.
That would be inconsistent with KDE,that uses apply and OK buttons, and cancel to
not apply and changes and exit. The Mandrake Control Center also works with OK
buttons.