tables from custom data formatters in frozen columns were getting truncated

Simply added .jqgrow and [role=gridcell] to a selector.

I had a formatter that was returning floating divs. Turns out IE couldn't handle them, so I dumbed it down to a one-row table. That's where this bug got me, but it was a simple enough fix. All but the first cell of my subtable was being removed from the DOM.