Added "md" command-line optiont o specify DNS server address for MX-rec lookup.

consistency. e.g. All telnet-related arguments start with 'T', mail-related
start with 'M', etc.

facility for all log output.

Eliminated the strcmp's in lputs, put the syslog calls in the appropriate
xxx_lputs functions.
Changed the command-line option to "-d[x]".

Created macro for pid filename.

fixed possible deadlock situation if child threads fail to initialize.

FreeBSD-tested seteuid(BOOL user) (set effective user-id) callback.
Deuce's mod (for the most part).

(for chat), and user identity lookups (using IDENT protocol).

Added command-line options to: set rlogin to second username,
enable telnet debug output, disable QWK events, disable the POP3 server,
disable the SendMail thread, disabled hostname lookups, disable JavaScript,
and to use local timezone (instead of assuming GMT/UTC).
Changed command-line options: u to un to set effective username, nf to f- to
disable FTP server and nm to m- to disable mail server.
Multiple dashes in command-line args are now ignored (e.g. "--ns").

Fixed defaults display command-line option.

Cleaned-up setuid-related log output.

Switched from fprintf(stderr,..) to lputs() for setuid warnings/status.

Added debug output to do_setuid.

Moved do_setuid calls from xxx_started to thread_up callback.

served. Eliminated separate module_clients() callbacks.