2003-08-28  Michael Natterer  <mitch@gimp.org>

	Completed the new help infrastructure. Needs some polishing but
	basically works as proposed:

	* tools/pdbgen/pdb/plug_in.pdb: changed gimp_plugin_help_register()
	to take a "domain_name" (which is the XML namespace) and a
	"domain_uri" (which is the root of the plug-in's help pages).

	* tools/pdbgen/pdb/help.pdb: changed gimp_help() to take help_id
	instead of a non-UTF-8 help_path.

	* app/plug-in/plug-in-def.[ch]
	* app/plug-in/plug-in-proc.[ch]
	* app/plug-in/plug-in-rc.c
	* app/plug-in/plug-ins.[ch]: remember the plug-ins' help_domain
	and help_uri instead of just help_path. Changed all plug-in APIs
	to reflect this change.

	* app/widgets/gimphelp.[ch]: on helpbrowser startup, pass it the
	whole list of help domains. The actual help request is now made
	using the browser's temporary procedure.

	* app/core/gimp.h
	* app/gui/file-open-menu.c
	* app/gui/file-save-menu.c
	* app/gui/plug-in-menus.[ch]
	* app/widgets/gimpitemfactory.c: changed accordingly.

	* app/pdb/help_cmds.c
	* app/pdb/plug_in_cmds.c
	* libgimp/gimphelp_pdb.[ch]
	* libgimp/gimpplugin_pdb.[ch]: regenerated.

	Changed the help broser to load the pages according to the
	new system:

	- moved the browser window stuff to dialog.[ch]
	- moved help domain handling to domain.[ch]
	- added gimp-help.xml parsing to domain.c
	- tons of cleanup

	* plug-ins/helpbrowser/Makefile.am
	* plug-ins/helpbrowser/dialog.[ch]
	* plug-ins/helpbrowser/domain.[ch]: new files.
	* plug-ins/helpbrowser/helpbrowser.c: chopped.