2002-05-15  Havoc Pennington  <hp@pobox.com>

	* src/workspace.c (meta_workspace_get_neighbor): use the layout
	information to figure out up/down neighbors

	* src/display.c (event_callback): catch propertynotify on
	_NET_DESKTOP_LAYOUT

	* src/screen.c (meta_screen_update_workspace_layout): keep track
	of the layout of workspaces as set by the pager