Bug ZK-1885 IE8: scrollable div (with vflex) and tooltip
Merge branch 'master' of github.com:zkoss/zk
refix zk-1908
fine tune fix of Bug ZK-1885
Bug ZK-1906: Chosenbox getSelectedObjects() returns empty list if model is ListModel of JavaBean instances instead of ListModel of String
fine tune fix of Bug ZK-1885
Bug fixed B50-ZK-1916: Different language codes for IE10 under Windows 8
http://tracker.zkoss.org/browse/ZK-1916