Added missing empty directories from svn import

Marius Cramer

2013-10-14 d9bcf68e395d6156645a7974b1a992aa6e6c00aa

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

@@ -1,6 +1,6 @@
<?php
$wb['list_head_txt'] = 'E-mail verkeer';
$wb['email_txt'] = 'E-mailaccount';
$wb['list_head_txt'] = 'Mail traffic';
$wb['email_txt'] = 'E-mail';
$wb['this_month_txt'] = 'Deze maand';
$wb['last_month_txt'] = 'Vorige maand';
$wb['this_year_txt'] = 'Dit jaar';