Bug Fixed B70-ZK-2129: Frozen Tree - column headers changing height (with native scrollbar) http://tracker.zkoss.org/browse/ZK-2129
Merge branch 'B70-ZK-2129' of https://github.com/danchen0720/zk.git
Bug Fixed B70-ZK-2130: Frozen Tree - columns flicker and width changes when resizing the browser http://tracker.zkoss.org/browse/ZK-2130