DatumConverter invokes autoload

rdb/DatumConverter.php:37 should be:
``
if (is_subclass_of($val, "\\r\\Query", FALSE) && !is_subclass_of($val, '\r\Datum\Datum', FALSE)) {
``

unless I'm doing something wrong, trying to insert anything but a true/false value results in autoloader invoking and causing an error.

adding this fixed it.