2005-09-12  Michael Natterer  <mitch@gimp.org>

	Really fix bug #150593:

	* app/widgets/Makefile.am
	* app/widgets/widgets-types.h
	* app/widgets/gimpdockseparator.[ch]: new widget implementing the
	droppable separator bar in docks.

	* app/widgets/gimpdock.c: use it and removed local separator
	utility functions.

	* app/widgets/gimptoolbox.c: use GimpDockSeparator API to show/hide
	the label. Expand the separator initially.

	* themes/Default/gtkrc
	* themes/Small/gtkrc: the separator height style property moved
	from GimpDock to GimpDockSeparator.