2002-06-08  Havoc Pennington  <hp@pobox.com>

	* src/xprops.c (meta_prop_get_utf8_string): don't die on bad atom
	name

	* src/display.c (meta_display_close): don't unmanage windows here,
	do it in screen_free and then closing the display unmanages
	windows as a side effect of unmanaging the screen
	(meta_display_unmanage_screen): new function
	(process_selection_clear, process_selection_request): handle
	selection stuff
	(meta_spew_event): don't crash on client message containing
	invalid atom
	(meta_spew_event): don't crash on property notify with invalid
	atom

	* src/main.c (main): add --replace option to replace existing
	window manager.

	* src/screen.c: implement holding manager selection.

	* src/display.c (meta_display_open): add new selection-related
	atoms.