Merge branch 'master' of http://git.ispconfig.org/ispconfig/ispconfig3

Jan-Claas Dirks

2015-09-24 6fe4103fcb9f28ca1382218e0f1c52dbb89cb43d

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