Wed Mar 22 17:08:35 2000  George Lebl <jirka@5z.com>

	* panel-widget.c,extern.[ch],panel.c: the do_draw applet signal is
	  now sent only when it is very likely that the rgb has changed,
  	  this makes it much nicer on system resources then before.  Also
  	  optimized the sending of the stuff over corba so that it doesn't
  	  get sent too many times right after each other.