2003-09-21  Matthias Clasen  <maclas@gmx.de>

	Changes to make cross-process merging feasible:

	* gtk/gtkuimanager.[hc]: Add a readonly "ui" property which holds the
	merged UI definition. Remove the "changed" signal, since its role
	is now filled by "notify::ui". Instead add a "actions-changed" signal
	which gets emitted when the set of actions changes.

	* gtk/gtktoggleactionprivate.h:
	* gtk/gtktoggleaction.[hc] (gtk_toggle_action_[sg]et_draw_as_radio):
	Add a "draw_as_radio" property to toggle actions so that they can be
	used as proxies for radio actions much like the "draw_as_radio"
	property on check menu items enables them to operate as proxies for
	radio actions.

	Prevent the "show_all" trap for action-based menus (see
	http://mail.gnome.org/archives/gtk-devel-list/2003-September/
	msg00260.html):

	* gtk/gtkmenu.c (gtk_menu_{hide,show}_all): Remove g_return_if_fail()
	calls from static functions.

	* gtk/gtkuimanager.c (update_node):
	* gtk/gtkac...