1999-10-29  Michael Natterer  <mitch@gimp.org>

	* app/brush_select.c
	* app/gradient_select.c
	* app/pattern_select.c: call the PDB callback from the context
	callback because it gets called on every change.

	* app/interface.c: the tool buttons had the wrong private tooltips
	attached.

	* app/gimphelp.c: call the help browser with plug_in_run() instead
	of procedural_db_execute() to make it really ansynchronous.
	Added a GtkTipsQuery tooltips inspector which gets invoked by
	<Shift>+F1. Did some illegal juggling with the tips_query's
	"parent" pointer which may cause problems, so I made the stuff
	disable-able with #ifdef's.
	Is there a proper way to create a tips_query widget without having
	to show it somewhere??