Removed dependency on CCInputCell. It wasn't doing anything special anyway.
Added UITextField reference to callback on input edits
Added inputField property to CCTableCell
Added callbackInputTextDidBeginEditing to CCTableCell
Renamed callbackInputTextEdited to callbackTextDidEndEditing in CCTableCell
Added inputLabel property to CCTableCell
Properly added support for reusing dequeued input cells, apparently that wasn't there before.