auditlog: log uidvalidity on mailbox create
annotate: store specialuse annotation in the DB
mboxlist: readwrite new format
mailbox: cleanup correctly when DELETED records retained
mboxlist: actually be able to remove RESERVED entries
mboxlist: legacy specialuse upgrade from 2.5-pre format
mboxevent: don't CANCEL all events because of specialuse stuff
mbexamine: print CID (will be zero without Conversations code backport)
add mboxlist_allusermbox API

Given a username, return all the mailboxes owned by this user
mboxlist: always skip DELETED records in foreach
mboxlist: don't keep tombstones for DELETED.* mailboxes, who needs that?
quota: don't barf on deleted folders
allow force delete where mailbox fails to open
mboxlist: handle denial of admin rights for ACL removal
wsfix
mboxlist: handle zero-length/empty buffer
mboxlist: don't try to parse subs DB as a mboxlist_entry
mboxlist: free buf in cstring
mboxlist: free entry if not requested
partition move - don't lose uidvalidity