Fix an issue when scrolling with editor open (see https://groups.google.com/forum/#!topic/slickgrid/CHi_iGf56OE )
Fix an issue when scrolling with editor open (see https://groups.google.com/forum/#!topic/slickgrid/CHi_iGf56OE )

chrisghost/X-SlickGrid,chrisghost/X-SlickGrid