• Add A key as keycode
• headerMenu: move the CSS min-width into plugin code
• headerMenu: autoAlign left if header drop menu is outside viewport
• add emulatePagingWhenScrolling option so when scrolling down with downarrow, we have a choice about whether, when we reach the bottom row in the viewpost, to scroll a whole page down and relocate the active row to the top line (true) or just to move the viewport contents up one row (false)
• deal with empty cacheEntry.RowNode in removeRowsFromCache
• changed signature of sortedUpdateItem() to be the same as updateItem()