add '${arg.sclass}' placeholder to messagebox.zul
update Javadoc comment of Messagebox.java
Bug fixed ZK-2028: When deleted one selected item in chosenbox with
ListSubModel, it would remove all the selection
http://tracker.zkoss.org/browse/ZK-2028
Bug fixed B65-ZK-2019: Chosenbox work incorrectly when using
ListSubModel and Comparator
http://tracker.zkoss.org/browse/ZK-2019
Bug fixed ZK-2044: Upload button does not always display the file selection dialog on IE11
http://tracker.zkoss.org/browse/ZK-2044
Merge remote-tracking branch 'upstream/6.5'
Bug fixed ZK-2045: Page becomes blank after detaching a modal window having an iframe loaded with PDF in IE 11
http://tracker.zkoss.org/browse/ZK-2045
Bug refixed ZK-2045: Page becomes blank after detaching a modal window having an iframe loaded with PDF in IE 11
http://tracker.zkoss.org/browse/ZK-2045
fine tune
Merge remote-tracking branch 'Noah/B65-ZK-2045' into 6.5
Merge remote-tracking branch 'upstream/6.5'
Bug fixed ZK-2046: Scroll position is reset to top if resize column of a grid with rod
http://tracker.zkoss.org/browse/ZK-2046
Bug refixed ZK-2046: Scroll position is reset to top if resize column of a grid with rod
http://tracker.zkoss.org/browse/ZK-2046
B65-ZK-2051: Chrome rmDesktop not working reliably, causing a memory
leak in Session
http://tracker.zkoss.org/browse/ZK-2051
Bug refixed ZK-2046: Scroll position is reset to top if resize column of a grid with rod
http://tracker.zkoss.org/browse/ZK-2046
Merge remote-tracking branch 'upstream/6.5'
Merge remote-tracking branch 'Noah/B65-ZK-2046' into 6.5
Merge remote-tracking branch 'upstream/6.5'
remove duplicate listener
Feature F70-ZK-2049:menupopup support toggle type  http://tracker.zkoss.org/browse/ZK-2049