Fixed path to /etc/mailman/virtual-mailman file in CentOS Installer.

Till Brehm

2014-02-02 79bd207998f5fc19425ce60001e9dcaae159c1f1

 install/sql/incremental/upd_0052.sql

New file
@@ -0,0 +1 @@
ALTER TABLE `client` ADD `default_slave_dnsserver` INT( 11 ) UNSIGNED NOT NULL DEFAULT '1' AFTER `limit_dns_zone`;