*
* - applySort($au, $sortcol, $direction, $array_of_columns, $multisort) -- does not support multisort at present..
* - applyFilters($_REQUEST, $authUser, $roo) -- apply any query filters on data. and hide stuff not to be seen. (RETURN false to prevent default filters.)
*
* - applySort($au, $sortcol, $direction, $array_of_columns, $multisort) -- does not support multisort at present..
* - applyFilters($_REQUEST, $authUser, $roo) -- apply any query filters on data. and hide stuff not to be seen. (RETURN false to prevent default filters.)