Update to 2.2.26.0, which you can tell is higher than 2.2.26 because 0
is a larger number.

• Fixed some compiling issues.
• auth: Fixed assert-crash when using NTLM or SKEY mechanisms and multiple passdbs.
• auth: Fixed crash when exporting to auth-worker passdb extra fields that had empty values.
• dsync: Fixed assert-crash in dsync_brain_sync_mailbox_deinit