Fixed problems that prevented ISPConfig to run on PHP 7, Issue #3716

Till Brehm

2016-02-09 f1926a01df8871cdacb29c97ffbfd7ff18d1610a

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ALTER TABLE  `mail_user` ADD  `autoresponder_subject` VARCHAR(255) NOT NULL DEFAULT 'Out of office reply' AFTER  `autoresponder_end_date`;