Bug fixed B65-ZK-1808 : Close tabpanel cause js error
fine tune accordion animation : reenable closing animation (code was never called)
minor fix
fix zktest build issue
Bug fixed B65-ZK-1812 : zAu.send: data of client event ignored on server side
ch domclass, move css to less
Merge branch 'update-combobutton' of https://github.com/huangnoah/zk into update-combobutton
ch dom structure
Merge branch '7.0' of https://github.com/zkoss/zk into update-combobutton
fix dom structure
fine tuning less
adjust toolbar mold style
Fix bug ZK-1821: Component inside native component doesn't cleanup correctly
http://tracker.zkoss.org/browse/ZK-1821
fix ZK-1819
ValidationContext support a new flag that can identify the value of single field whether is valid when use form binding
add @since
Merge branch '7.0' of https://github.com/zkoss/zk into update-combobutton
both the width of combobutton and popup become same, 
if prev one is large than last one.
Merge remote-tracking branch 'VincentJian/B65-ZK-1821'
Bug fixed ZK-1822: Turkish locale problem during browser detection 
(on server side) http://tracker.zkoss.org/browse/ZK-1822
minor fix