* -- apply any query filters on data. and hide stuff not to be seen.
* -- can exit by calling $roo->jerr()
* postListExtra($_REQUEST, $roo, $array_data) : array(extra_name => data)
- * - add extra column data on the results (like new messages etc.)
+ * - add extra column to the jdata return key/value info.
* postListFilter($data, $authUser, $request) return $data
- * - add extra data to an object
+ * - modify the returned array of data (either add stuff to the data, or remove lines etc)
*
*
* toRooSingleArray($authUser, $request) : array