commiting patch after comments from Alex on IRC

commiting patch after comments from Alex on IRC

2001-07-15  James Henstridge  <james@daa.com.au>

	* gtk/gtkwindow.c (gtk_window_add_accel_group): cast to GObject.
	(gtk_window_remove_accel_group): same here.
	(gtk_window_key_press_event): same here.

	* gtk/gtkwidget.c (gtk_widget_add_accelerator): cast to GObject.
	(gtk_widget_remove_accelerator): same here.
	(gtk_widget_remove_accelerators): same here.

	* gtk/gtkplug.c (gtk_plug_accel_entries_changed): same here.

	* gtk/gtkmenushell.c (gtk_menu_shell_key_press): cast to GObject
	instead of GtkObject.

	* gtk/gtkmenu.c (gtk_menu_key_press): update since GtkAccelGroup
	now takes GObjects.

	* gtk/gtkitemfactory.c (gtk_item_factory_propagate_accelerator):
	pass a GObject to gtk_accel_group_entries_from_object.
	(gtk_item_factory_create_item): s/accel_widget/accel_object/

	* gtk/gtk-boxed.defs: remove GtkAccelGroup boxed def.

	* gtk/gtkaccellabel.c: convert to handle GObject accel objects.

	* gtk/gtkaccellabel.h: fix header to reflect that arbitrary
	GObjects can have accelerators set now.  Add compatibility
	defines.

	* gtk/gtkmarshal.list: add missing marshallers.

	* gtk/gtkaccelgroup.[ch]: convert to a GObject, and allow setting
	accelerators on plain GObjects.  gtk_accel_group_object_destroy
	has been converted into a weak reference, and
	gtk_accel_group_delete_entries is now a destroy notify for that
	piece of data.