Log Message:
Update cyrus-imapd to 2.3.9

 *  Added support for BDB 4.5 and 4.6.
 *  Fixed bug in frontend handling of CREATE for both proxying and referring.
    -- courtesy of Gary Mills
 *  Fixed local deletion during XFER from a unified server. -- courtesy of Gary
    Mills
 *  Fixed XFER bug which prevented sieve scripts from being migrated. --
    courtesy of Gary Mills
 *  Allow utilities to be run as root (acquiring 'cyrus' uid on-the-fly).
 *  Changed the default value of the allowplaintext option to disabled (0).
 *  Finally fixed 64-bit alignment problem with HIGHESTMODSEQ.
 *  Fixed initialization of UUID subsystem for replication. -- courtesy of
    Fastmail.fm
 *  Added -a option to cyr_expire to ignore to skip annotation check. --
    courtesy of Fastmail.fm
 *  Set the mtime of synchronized message files to INTERNALDATE (makes
    reconstruction a little friendlier). -- courtesy of Fastmail.fm
 *  Fixed a bug in sync_client which caused it to bail when a message was
    deleted out from under it.
 *  Allow sync_server to accept unauthenticated connections from sync_client on
    a UNIX socket.
 *  Drastically reduced the amount of time it takes for a mupdate slave to
    synchronize with a master.
 *  Added URI contained in the Content-Location header to the BODYSTRUCTURE
    response (per RFC 3501). -- inspired by Fastmail.fm
 *  Fixed flushseenstate bug which was causing unsolicited EXPUNGE responses
    during FETCH/STORE. -- courtesy of David Carter
 *  Added option to ctl_mboxlist to verify the consistency of the mailbox list
    database and the spool partition(s). See ctl_mboxlist.8 for details.
 *  RENAME now copies cyrus.expunge index file as well as expunged message
    files.
 *  Fixed replication of 64-bit quotas. -- courtesy of David Carter
 *  Fixed miscellaneous bugs, memory leaks, and build issues.