include:
* maildir/maildirquota.c (docheckquota): Memory used after being freed.
* maildir/deliverquota.c (deliver): Overquota condition is now a
temporary delivery failure, in accordance with the new backscatter
suppression logic.
from courier-0.45.6. Changes from version 0.44.2 include:
* Renamed maildir* programs and manpages to be courier-maildir* to avoid
conflicts with other maildir packages (notably, qmail).
* New utilities to handle maildirs with ACLs to support ACL IMAP in
courier-imap and sqwebmail.
* Added scripts to build indices of shared maildirs on the system for
courier-imap and sqwebmail.