(setcomment)  Add quotes if needed.
(_xform)  Always validate the address.  Thanks to SRE.
(_exclude)  Skip invalid addresses.
(who_chunk)  Fix MSGNO substitution.
  Thanks to Roger Klorese.
Reword the description of the replyto flag.
(compile_pattern)  Change the 'ALL' pattern to work around a bug
  for the empty pattern (//).
  Thanks to Dean Collins.
Mention the use of "GLOBAL:" to mean any registered address.
(_subscribe)  Log a "register" event if the subscription
  causes the subscriber to be registered.
Support the who-noname command,
  which prints the plain address without comments.
  Suggested by Steven Orr.
Allow farewell files to be sent when an address is unregistered.
The "unregistered" file has a "noweb" counterpart.
(trigger, _unregister)  Send farewell messages as appropriate
  when an address is unregistered.
  Suggested by Brock Rozen.
The farewell and farewell_files settings are also GLOBAL.
Support the unregister-farewell and unregister-nofarewell commands.
Address component problems during installation occur with more than
one version of RH.
Fix typo.
(_d_advertise)  Show information about a list if an admin password
  for the list is used.
  Thanks to Roger Klorese.
(connect)  Give a reasonable value for the elapsed time
  if the connection fails.
  Thanks to Marc Fournier.
(parse_part)  Give a reasonable value for the elapsed time
  if no commands are found.
Add some notes and references related to document customization.
Thanks to Tim Nelson.
Fix typo.