backward compatibilty with protobuf
backward compatibilty with protobuf

xlqian/navitia,Tisseo/navitia,Tisseo/navitia,Tisseo/navitia,Tisseo/navitia,CanalTP/navitia,Tisseo/navitia,CanalTP/navitia,xlqian/navitia,xlqian/navitia,CanalTP/navitia,xlqian/navitia,CanalTP/navitia,CanalTP/navitia,xlqian/navitia