B70-ZK-2065: W3C validation error for macro component
http://localhost:8080/zktest/test2/B70-ZK-2065.zul
B70-ZK-2065: W3C validation error for macro component
http://tracker.zkoss.org/browse/ZK-2065
Merge remote-tracking branch 'RaymondChao/B70-ZK-2065'