Fixed #3878 and #3901: function filter_var missing

Till Brehm

2016-05-26 30aae443d7732380a9f0c243d88015132a9a2875

 interface/web/admin/groups_del.php

@@ -44,6 +44,7 @@

//* Check permissions for module
$app->auth->check_module_permissions('admin');
$app->auth->check_security_permissions('admin_allow_cpuser_group');

$app->uses("tform_actions");
$app->tform_actions->onDelete();