Add error files for invalid e-mail addresses.
Correct typo.
Document the latest error files, format files, and substitutions.
Move hard-coded English into format and error files.
Save debugging info to a file (mj_shell.debug) instead of using syslog.
Version number is now 0.1200211280.
Use error files for invalid address messages.
(parse_address)  Obtain the error message for an invalid address
  with a callback.
(lists)  Bugfix:  escape list information more thoroughly.
(add)  Set autoflush on the file handle for the "file" method of logging.
Create a temporary directory and store debug info in that directory
to avoid permission problems.
(retr_error, retr_file)  Support the retrieval of stock error files.
(_validate)  Return error message names instead of hard-coding the
messages themselves.
Describe the new "probebounce" and "tokenbounce" events.
(dispatch)  Differentiate token, probe, and regular bounces.
Inform about tokenbounce events by default.
(handle_bounce)  Return the bounce type.
(handle_bounce_token)  Send the bounce message to the owners
  based upon the inform configuration setting.
Include probebounce and tokenbounce in the list of logged events.
(inform)  Do not send notices for tokenbounce events.
(owner_done)  Return the bounce type.
Add XLANG markers.