Fix Bug: B65-ZK-1724: fileupload error contentId is required
minor update
fix ZK-1791 @global-command does not provide predefined "event" variable
Fix Bug B60-ZK-1784: client rod with hflex cause js error
rm dsp, header fixed, write some .less
Merge branch '7.0' of https://github.com/zkoss/zk into update-panel
redraw() body fixed, body less fixed.
rm console.log(), rm unused class, extract variable
fixed maximized
fix zk 1787 notify change with tempalte
Merge branch 'zkoss/master'

Conflicts:
	zkdoc/release-note
fix bug B65-ZK-1785 : Tabbox (accordion) : selecting and removing a tab results in wrong node being opened
Merge branch '7.0' of github.com:zkoss/zk into 7.0
Merge branch '7.0' of github.com:zkoss/zk into 7.0
Bug fixed B65-ZK-1797: A js error happen while to rsFocus a button in a
popup in window
http://tracker.zkoss.org/browse/ZK-1797
Bug fixed B65-ZK-1797: A js error happen while to rsFocus a button in a
popup in window
http://tracker.zkoss.org/browse/ZK-1797
Delete two additional empty lines at config.properties
minor fine tune
Merge branch '7.0' of github.com:zkoss/zk into 7.0
fine tune browser detection
* remove zk.safari_