* gladeui/glade-property-class.c: string_from_enum, now returns the nick and not the
	name (generally all around nicer menus when no displayable values and also smaller
	nicer glade files). Displayable values are now consequently indexed by nick and not name.

	* gladeui/glade-displayable-values.[ch]: Added reverse lookup glade_get_value_from_displayable()

	* gladeui/glade-utils.[ch]: When doing glade_utils_enum/flag_value_from_string(), allow
	displayable values (also added glade_utils_enum/flag_string_from_value_displayable()).

	* plugins/gtk+/glade-icon-sources.c: Use all around displayable values for items
	in the treeview.


svn path=/trunk/; revision=1993