Fixed #3835 Delete MailBackup not working - Log shows a warning about SQL I...

Till Brehm

2016-04-20 86853d4d0fd66c277746e9e0cf07fbecbfbbc362

1
ALTER TABLE `web_domain` ADD COLUMN `enable_spdy` ENUM('y','n') NULL DEFAULT 'n' AFTER `proxy_directives`;