add $backup_dir_mount_cmd to mail-backup

Florian Schaal

2014-11-04 28a1dcf7efcfbe9ad7cb3010759d111b80659d63

 install/sql/incremental/upd_0027.sql

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