Fix HeaderRegion rtl
Fix scrollToColumn in IE
Fix typo
Fix a dod defect that when cell is updated, the expando disappears.
Merge branch 'master' of https://github.com/oria/gridx
Fix PagedBody in IE8
Fix scrolling slow in IE
Add lazy edit cell edited background node
Merge branch 'master' of https://github.com/oria/gridx
modify.js doc updated
Fix row table when group header used in Safari
Fix header body outof sync when focus navigable cell
Merge branch 'master' into 1.2