Feature added ZK-2227: ZK Messages support Polish lang
http://tracker.zkoss.org/browse/ZK-2227
Bug fixed B65-ZK-2210: improve zk portlet 2 integration
http://tracker.zkoss.org/browse/ZK-2210
Merge remote-tracking branch 'Noah/F65-ZK-2227' into 6.5
Merge remote-tracking branch 'upstream/6.5'