Fixed #3979 Mailbox users unable to save autoresponders

Till Brehm

2016-07-24 b9a3ef486ebcde18a5ade37865ff8f397185d24f

 interface/web/sites/lib/lang/pl_web_vhost_subdomain_list.lng

New file
@@ -0,0 +1,8 @@
<?php
$wb['list_head_txt'] = 'Subdomains';
$wb['active_txt'] = 'Active';
$wb['server_id_txt'] = 'Server';
$wb['parent_domain_id_txt'] = 'Website';
$wb['domain_txt'] = 'Subdomain';
$wb['add_new_record_txt'] = 'Add new subdomain';
?>