2004-10-22  Elijah Newren  <newren@math.utah.edu>

	Update _NET_WM_STATE_HIDDEN so the pager on the panel will know
	whether to display windows as visible or hidden (#105665)

	* src/screen.c (queue_windows_showing): Revert the
	queue_windows_showing portion of the patch committed on 2004-10-16
	for #142198--it was an ill-advised optimization.

	* src/window.c (window_showing_on_its_workspace,
	window_should_be_showing): split the old window_should_be_showing
	into these two functions, (set_net_wm_state): hidden state is more
	complex; use window_showing_on_its_workspace to determine the
	correct value