(_str_to_clock) Add "hourly" designation (synonym for "always").
Change monthly trigger to 3 AM, quarterly to 4 AM, and yearly to
5 AM to avoid daylight savings time problem.
(t_remind) Fix variable typo
add 'hourly', change month/quarter/year time of day to avoid daylight savings
save new auto-generated header (default changed)
Stomp some warnings from Term::ReadLine.
Remove leading and trailing white space from interactive commands.
Requested by SRE.
Remove trailing blank line
(accept):  Track elapsed time for each token individually.
(_subscribe):  Use "set" mode to allow settings to be included
  in a subscription command.  For example,
    subscribe-set LIST digest
  is used instead of
    subscribe-digest LIST
Add entries for the new "set" mode of the subscribe command.
(inform) Convert the elapsed time from a number to a string with
three digits after the decimal.
(make_setting)  Convert obsolete ackall and ackimportant settings
into their constituent flags seamlessly when an ack setting is
changed.  Requested by SRE.
(replace_headers) Purge temporary files.
(mail_message)  Add elapsed time to inform() call.
(post, do_digests)  Add elapsed time to inform() calls.
(t_accept)  Add elapsed time to inform() call.
(consult)  Improve variable checks to eliminate warnings during
confirm->consult transition.
(connect_no_parse) Fix file handle typo.
Fix connect calls in mj_email and mj_queuerun.
Clarify the types of token, the use of "delay" mode, and the
ability to constrain the tokens shown to a particular type
of request.
Provide working example and clarify the meaning of the delay trigger.
Increase timeout in mj_queueserv when waiting for the child to start up.
Add a few more tests to core.t.