xstream.alias("location", Location.class);
xstream.alias("locations", Locations.class);
xstream.aliasField("level-name", Location.class, "levelName");
xstream.aliasField("located-at", Location.class, "locatedAt");
xstream.aliasField("normal-name", Location.class, "normalName");
xstream.aliasField("place-id", Location.class, "placeId");
xstream.aliasField("location-hierarchy", User.class, "locationHierarchy");
xstream.aliasField("georss:point", Location.class, "gpsCoordinate");
xstream.aliasField("georss:box", Location.class, "box");
xstream.aliasField("woeid", Location.class, "whereOnEarthId");