Bug fixed B65-ZK-2021: Combobox autocomplete performance degrading
quadratically with increasing number of comboitems
http://tracker.zkoss.org/browse/ZK-2021
Bug fixed B65-ZK-2015: Change the visible of cell component sometimes
will fail (IE10 only)
http://tracker.zkoss.org/browse/ZK-2015
ZK-2022: appending a component after its removal fails to initialize bindings
Bug ZK-2025: Extends ZK component with lang-addon.xml file, zkbind feature doesn't work
Bug fix for B30-1729253.zul on ZTL