display dns-record for dkim in the mail-domain
rewrite function domain_dkim_update in server/plugins-available/mail_plugin_dkim.inc.php
change dns*.php according to commit 604c0c24

Fixed/Implemented: replaced intval() by $app->functions->intval() in all interface functions due to big number problem in intval()

Added serial into the SQL SELECT query for the function that gets the current serial number and increases it.
-Bergur

Data records are now assigned to the correct client group if they were created by the administrator.

- Changed shell of website linux user to /bin/false