Move the list of default actions to the configset_access_rules
help file.

List the new "chainfile" and "expire" notify variables.
Major rewrite, including better descriptions of recent features
and removal of incorrect examples.
Fix typo.
Version number is now 0.1200203160.
(_password)  Use the GLOBAL message_headers setting in the
  headers of the password notice that is mailed to the victim.
(reject)  Use a list-specific whoami_owner address in the
  From header of a rejection notice to the victim.
  Suggested by Roger Klorese.
(alias)  Bugfix:  use length() instead of exists() test
  for the presence of an address.  Thanks to Brock Rozen.
(_a_confirm2)  Use only 2 parameters, file names for the
  victim and requester.
(_a_forward)  Use the whoami_owner address if no parameter is given.
(_a_mailfile)  Use the whoami_owner address instead of the sender address.
(_compile_rule)  Test filename parameters in notify variables.
(alias)  Make minor improvements to the result message.
(confirm, t_accept)  Support "notify" customizations for the
  chain file and expiration time.
(n_defaults)  Support the new chainfile and expire notify variables.
Adjust results for the alias command.
Sort messages within a queue by date, oldest first.
Suggested by Brock Rozen.
Sort messages within a queue directory in date order, oldest first.
Suggested by Brock Rozen.
Exit after sending a "Hello" message to the queue server.
Record the total time taken.
(ping_runners)  Return immediately if a valid runner is found.
Do not respond to clients.
Clarify the relationship of the message_headers setting to the
precedence and reply_to settings.
(_lists)  Bugfix:  initialize variable.  Thanks to Roger Klorese.
Add .su domain back into domain list.
Add an "already subscribed" error message.
(_subscribe)  Support the already_subscribed error file.
Add references to other help files.