Feature ZK-1919: ZK Components support static uuid
http://tracker.zkoss.org/browse/ZK-1919
Merge branch '7.0' of github.com:zkoss/zk into 7.0
add release note
Merge remote-tracking branch 'VincentJian/F70-ZK-1919' into 7.0
minor tune
Merge branch '7.0' of github.com:zkoss/zk into 7.0
replace double quote to single quote