added new apis gtk_menu_item_[set/get]_label() and

added new apis gtk_menu_item_[set/get]_label() and

2008-11-06  Tristan Van Berkom <tvb@gnome.org>

	* gtk/gtkmenuitem.[ch]: added new apis gtk_menu_item_[set/get]_label() and
	gtk_menu_item_[set/get]_use_underline() with "label" and "use-underline"
	properties, constructors cleaned up to use g_object_new().
	GtkMenuItemClass take new vfuncs ->get/set_label().

	* gtk/gtkcheckmenuitem.c: constructors cleaned up to use g_object_new().

	* gtk/gtkimagemenuitem.[ch]: added new apis gtk_image_menu_item_[get/set]_use_stock()
	and gtk_image_menu_item_set_accel_group() with "use-stock" and write-only
	"accel-group" properties. constructors cleaned up to use g_object_new().

svn path=/trunk/; revision=21766