**** LMTP REDESIGN ****

RESULT:
- robust checking and handling of NNTP protocol errors
- logging into a single file -> write(2) !fwrite(3)
- invoked as mailer using LMTP, providing useful return status
- invoked as command line (lowpri)
- queuing is not supported for command line and a client issue for LMTP
- remove To: and Cc: headers
- allow crosspostings only through command line
- new manpage
- (optional) syslog
- command line choice for sending "exactly once" or "at least once" (default)