Harvey Tindall
4dcec4b9c7
calculation for number of rows to be drawn was wrong, fixed now. To compensate for overshooting with fast scrolling, speed is calculated using previous scrollY in rows/scroll, and used to render more rows. Also, the "scrollend" event is used to load more at the end of a scroll always. Since this isn't available on safari/webkit(2gtk), a polyfill has been added.