and read-texts.
(Person Status Types): Mention read-ranges.
(Membership Information): Mention that obsolete versions of
	Membership exists.
(Membership Information): Renamed Membership to Membership-10, and
	added new Membership and Read-Range types.
(Protocol Requests): Flag 98=query-read-texts-10 and
	99=get-membership-10 as obsolete.  Added 107=query-read-texts
	and 108=get-membership.
(sub-member): Changed get-membership to get-membership-old, since
	that is was the example uses.  Added markup.
(mark-as-read): Changed query-read-texts to query-read-texts-old,
	since that is what the example uses.  Added markup.
(set-unread): Ditto.
(set-last-read): Ditto.
(query-read-texts-10): New name for former request query-read-texts.
	Mark it as obsolete and refer to the new query-read-texts
	request.  Changed return type to Membership-10.
(get-membership-10): New name for former request get-membership.  Mark
	it as obsolete and refer to the new get-membership request.
	Changed return type to ARRAY Membership-10.
(query-read-texts): New request.
(get-membership): New request.
(Membership visibility): Added get-membership-10 and query-read-texts-10.
(What do I have unread): Added markup.
(Future changes): Removed references to bug 52.
(Document Edition History): Tracked the renaming of
	query-read-texts-10 and get-membership-10.