Added missing empty directories from svn import

Marius Cramer

2013-10-14 d9bcf68e395d6156645a7974b1a992aa6e6c00aa

 interface/web/mail/lib/lang/en_mail_mailinglist.lng

@@ -1,4 +1,5 @@
<?php
$wb["mailinglist_txt"] = 'Mailing list';
$wb["limit_mailmailinglist_txt"] = 'Limit reached';
$wb["domain_error_empty"] = 'Domain is empty.';
$wb["listname_error_empty"] = 'Listname is empty.';