(%flags) Add ackdeny, ackpost, ackreject, and ackstall settings
  for fine-grained selection of acknowledgements.
(set) Implement allowed_classes and allowed_flags checks,
  which limit the settings which may be changed by subscribers.
(make_setting) Deal with group settings: the ackall and
  ackimportant flags now turn on all of the individual ack flags,
  and the noack flag turns them all off.
(should_ack) New routine.  Determine whether a certain action
  requires an ack to be sent to the victim.
(aux_get_member) New routine.  Return the auxiliary list
  data for a particular address.
(post) Include the sublist, date, and message author in
  the variable substitutions.
(_post) Send an acknowledgement if warranted.
(t_accept):  Acks for posted messages are handled by Mj::Resend::_post.
Determine if an ack was sent in this case.
Implement log_lifetime variable, the age in days after which log
entries are removed by the daily trigger.
(set) Minor formatting change.
(gen_cmdline) Adapt to parser/commandprops revisions.
(set) Support "check" mode, which allows settings to be reviewed
but not changed.
(l_expire) New routine.  Remove log entries older than the
log_lifetime setting.
Rearrange 'arguments' data to make per-mode adjustments easier.
Present the output of scalar types more judiciously:  Use
shorter entry boxes for integer and boolean values, menus
for enumerated types, and multiple-selection menus for flags.
Add a link to the appropriate help page for each variable
displayed by the configshow command.
Bring flag fields and documents up to date.
(dispatch) Do not generate a command line during _chunk and _done
requests.
*** empty log message ***
(parse_args) Be sure to sort argument names alphabetically.
(_list_file_get)  Perform substitutions on file_not_found to avoid
potential unlinking.  Correct typo in file_not_found.
(reject) Remove unwanted semicolon.
(confirm, consult, t_remind) Include the token identifier as the first
part of the description (Subject header) in the default descriptions
for the confirm, consult, and token_remind files.  Previously, it
was hard-coded in the Token.pm routines.
(archive_chunk)  Include "To" header.  Indicate the number of
digests sent in the "Subject" header.
(accept) Give correct message if further approvals are needed.
(configdef) Return value explicitly.
(t_accept) Unlink temp file after reading it into memory.
"is currently being delivered."