Fix bug ZK-1998: Listbox using GroupsModel sometimes would not update the select all status
http://tracker.zkoss.org/browse/ZK-1998
add missing test case
minor fix
Bug ZK-1997: Portallayout drag&drop element to the same position. onPortalMove event provided with wrong data
Merge branch '6.5' of github.com:zkoss/zk into 6.5
ZK-1990: Can't get expected Locale in Bridge
update javadoc for EventQueues's Application Scope
Bug fixed ZK-2001: Focus to a chosenbox that place in a listbox shall not change listbox selection
http://tracker.zkoss.org/browse/ZK-2001