B50-ZK-1179: ZK Internationalization Labels doesn't work with liferay (portal env)
http://tracker.zkoss.org/browse/ZK-1179
Merge pull request #32 from VincentJian/B50-ZK-1179

B50-ZK-1179: ZK Internationalization Labels doesn't work with liferay (portal env)
Bug fixed: B50-ZK-1230.zul

Listbox with rod only removes the first list item when setItemInvalid

Signed-off-by: Neil Lee <neillee@potix.com>
Merge remote-tracking branch 'neillee/B50-ZK-1230' into 5.0
Merge remote-tracking branch 'neillee/B50-ZK-1222' into 5.0
Merge remote-tracking branch 'benbai123/B50-update-gmaps-to-3.0.0_02' into 5.0
fix bug 1298
Bug ZK-1303: listbox select mold with 1 rows onSelect event not fired for first item
http://tracker.zkoss.org/browse/ZK-1303
Feature ZK-1301: The buttons in the Messagebox shall use autodisable‎
Merge commit 'zk5-1298'

Conflicts:
	zkdoc/release-note
Fine tune Treeitem: renderItem shall not call when the item loaded
Bug ZK-1276 Combobox does not sync the selected item
http://tracker.zkoss.org/browse/ZK-1276
modify description of test case
Merge remote-tracking branch 'VincentJian/B50-ZK-1276' into 5.0
Bug ZK-1256: Combobox onSelect not working properly
http://tracker.zkoss.org/browse/ZK-1256
Merge branch '5.0' of github.com:zkoss/zk into 5.0
Bug ZK-1322: Issue on timebox with null value
http://tracker.zkoss.org/browse/ZK-1322
fine tune bug ZK-1322
Merge remote-tracking branch 'VincentJian/B50-ZK-1322' into 5.0
Feature ZK-1397: DefaultTreeNode support empty children mean leaf node