PHP Warning: [Deprecated] Optional parameter; actions_subtotal.class.php:1465

PHP Warning: [Deprecated] Optional parameter $parameters declared before required parameter $object at /subtotal/class/actions_subtotal.class.php:1465

Maybe changing 
   ($parameters=array(), &$object, &$action='') by (array $parameters, &$object, &$action='') on function declaration fix this warning

