2006-03-08  Michael Natterer  <mitch@imendio.com>

	* gdk/gdkscreen.h
	* gdk/x11/gdkscreen-x11.c
	* gdk/gdk.symbols: added gdk_screen_get_active_window() and
	gdk_screen_get_window_stack() (patch from maemo-gtk).
	Fixes bug #320881.

	* gdk/directfb/gdkscreen-directfb.c
	* gdk/quartz/gdkscreen-quartz.c
	* gdk/win32/gdkscreen-win32.c: added the functions as stubs.