2006-04-27  Michael Natterer  <mitch@gimp.org>

	Added some signals inspired by Rockwalrus' libpdb:

	* app/pdb/gimppdb.[ch]: added signals "register-procedure" and
	"unregister-procedure".

	* app/pdb/gimppluginprocedure.[ch]: added signal "menu-path-added".

	* app/actions/plug-in-actions.[ch]
	* app/menus/plug-in-menus.[ch]: connect to the new signals and
	create/destroy plug-in actions and menus accordingly. Made all
	needed functions private and merged some of them with the newly
	added signal callbacks.

	* app/core/gimp-gui.[ch]
	* app/gui/gui-vtable.c: removed gimp_menus_create_item() and
	gimp_menus_delete_item() and all related stuff.

	* app/plug-in/plug-in.c
	* app/plug-in/plug-ins.c: removed calls to the removed functions.

	* app/plug-in/plug-ins.c (plug_ins_init): add the plug-in
	procedures to the PDB *after* calling gimp_menus_init() so their
	locale domains are properly initialized when the menus are
	created.