[vchkpw] vpopmail 5.3.23 released

[Tom Collins]

I'm leaving for the airport in 5 minutes, but here's the 5.3.23 release:

5.3.23

Tom Collins
- Removed timezone declaration to correct compile problem on
  FreeBSD.
5.3.22

Moshe Jacobson
- Fix maildir_to_email() to work with hashed domain directories.
Matt Berardi
- Add 2 second timeout on MySQL connections.
Jens Jahr
- Check for failure when calling auth module.
- Fix vadddomain/vdeldomain when the auth module call fails.
- Fix vsetuserquota to include status messages.
Tom Collins
- Add Date header to over quota warning message.
- Fix possible buffer overflows when setting envbuf[1-4] in
  vchkpw.c. (bug spotted by Michael Bowe)
- Remove error messages from vmysql.c that could interfere with
  POP or SMTP AUTH client sessions.
- Switched from using --enable-default-domain to storing default
  domain in ~vpopmail/etc/defaultdomain.  This should provide
  flexibility when compiling packages for distribution.