* gladeui/glade-widget.[ch], gladeui/glade-command.[ch]: Added
	glade_widget_[un]lock() and glade_command_[un]lock_widget().

	* plugins/gtk+/glade-gtk.c, plugins/gtk+/gtk+.xml.in, plugins/gtk+/glade-convert.c,
	plugins/gtk+/glade-image-item-editor.c: Dual format menu editing support
	depending on my gtk+ patch on bug 527672, TODO: still need to add accel-groups
	to GtkWindow on the glade side of things.


svn path=/trunk/; revision=2013