minor fix drag after merge
Bug fixed 2935398: scroll to bottom then click button,  an errorbox should show at the right side of the textbox for ie8.
fix zul
Bug fixed ZK-1124 for ie8: Click away from the menu to close it, you should see a message box showed.
Merge branch 'master' of https://github.com/zkoss/zk into fix-ie8
minor fix
minor fix
fix: sync before notifyAll
Merge branch '6.5' of github.com:zkoss/zk
Bug ZK-1951 : Page becomes blank after detaching a modal window having an iframe loaded with PDF in IE 10
Merge remote-tracking branch 'upstream/6.5'
Style fixed: the head-bar should look well when native scrollbar appear
Bug fixed: the first header should have border-left when the header of before head have too much rowspan.
Merge branch 'master' of https://github.com/zkoss/zk into fix-ie8
Fine tune
Fix the typo of msgzul_tr.properties
Merge branch 'master' of https://github.com/zkoss/zk into fix-ie8
Bug fixed ZK-1729: Change generic code
http://tracker.zkoss.org/browse/ZK-1729
Merge branch 'fix-ie8' of https://github.com/huangnoah/zk into fix-ie8
minor tune