include:
* Support for MySQL and LDAP lookups via courier-authlib.
* Honor maildir delivery quotas.
* Bug fixes in MIME handling.
* Plug memory leaks.
* Replace dotlock with lockmail, which supports more types of locking.
* Find config files in /etc/courier (or PKG_SYSCONFDIR equivalent).
We consolidate all Courier MTA software config files under a
common /etc/courier directory.
* Loosen up the parsing of the content-type header. Strict parsing
allowed viruses to slip through using malformed content-type
headers which still got picked up by Microsoft's crapware which
does not strictly parse the MIME headers.
* Drop install setuid.
* Add UMASK variable, that sets the permissions on new mailboxes
or messages. Hence, drop MAILBOX_MODE from configure script.
