Website domain backup tab was using wrong template file.

Till Brehm

2016-01-02 5660509ef29fdbcbfb28d34ee954279dd36afc4f

 install/sql/incremental/upd_0052.sql

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