Nupop

The message formatter has been rewritten using lex allowing for much better control of message output. Newsletters can be rewritten on a per-user basis. Logging is prettier and more complete. Several major bugfixes were also made, notably: saving cache is better handled when user is at/near quota, and dot stuffing is now done properly on outgoing messages.

A complete rewrite of user rewrite code, addition of commandline arguments, and bugfixes.

A fix for a bug in __send_mesg that could sometimes segfault on certain byte patterns.

Lots of feature additions: checking for extra '.'s
in message bodies, an RFC 822 message size
reporting function, message list sorting, support
for the LAST command, automatic creation of
maildir directories, limits on password/username
attempts, and addition of UW-style "Status:"
headers (some clients require it).