Bug ZK-2149: zul.xsd is incomplete. Panel tag missing attributes "sizable" and "framable"
Due to the issue ZK-2197, we deprecate the Tablechildren#setVflex and setHflex method
Bug ZK-2243: Listboxes with width=100% and hflex=1 placed inside TableLayout do not resize correctly
Bug fixed ZK-2238: Tree with native scrollbar problem when opening nodes further down
http://tracker.zkoss.org/browse/ZK-2238