2006-09-18  Elijah Newren  <newren gmail com>

	Partial audit to fix timestamp usage.  One step towards fixing
	#355180; see important comments in that bug.

	* src/core.[ch] (meta_core_unshade, meta_core_shade):
	* src/delete.c (meta_window_present_delete_dialog,
	  delete_ping_timeout_func):
	* src/display.[ch] (meta_display_open, meta_display_close,
	  event_callback, meta_display_begin_grab_op,
	  process_selection_clear, meta_display_unmanage_screen,
	  meta_display_unmanage_windows_for_screen):
	* src/frames.c (meta_frames_button_press_event):
	* src/keybindings.c (handle_toggle_shade):
	* src/main.c (main):
	* src/screen.[ch] (update_num_workspaces, meta_screen_new,
	  meta_screen_free, prefs_changed_callback):
	* src/window.[ch] (meta_window_free, finish_minimize,
	  implement_showing, meta_window_show, meta_window_maximize,
	  meta_window_make_fullscreen_internal,
	  meta_window_unmake_fullscreen, meta_window_shade,
	  meta_window_unshade, window_activate, send_sync_request,
	  meta_window_client_message, menu_callback,
	  meta_window_update_keyboard_resize):
	Remove usage of CurrentTime, meta_display_get_current_time() and
	meta_display_get_current_time_roundtrip() where possible, or
	document why it isn't possible, or at very least add a FIXME with
	some explanation of my laziness and what needs to be done.