Copied files from svn 3.0.5 stable branch (git migration)

Marius Cramer

2013-10-14 992797f73c92b413a7fecff02c27c61b7db55b43

 interface/lib/classes/custom_datasource.inc.php

@@ -105,6 +105,9 @@
         case 'default_dnsserver':
            $field = 'dns_server';
         break;
         case 'default_slave_dnsserver':
            $field = 'dns_server';
         break;
         case 'default_fileserver':
            $field = 'file_server';
         break;