Added en+ Device in bastille firewall config to improve Centos 7 support.

Till Brehm

2015-01-18 f3f4aa5c5498c5af4b9248807d9720b13891b2ab

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