Do return the correct owner for CLIPBOARD (i.e., the owner of the Windows

Do return the correct owner for CLIPBOARD (i.e., the owner of the Windows

2005-09-20  Tor Lillqvist  <tml@novell.com>

	* gdk/win32/gdkselection-win32.c
	(gdk_selection_owner_get_for_display): Do return the correct owner
	for CLIPBOARD (i.e., the owner of the Windows Clipboard, if it is
	a window GDK knows about). The reason to return NULL seems to have
	gone when in the fix for bug #163702 the artificial
	GDK_SELECTION_CLEAR event generation was removed from
	gdk_selection_send_notify_for_display(). Fixes bug #316552.