(Protocol Version History): Update the entry for protocol version
	10.  The status of 59=create-anonymous-text-old was changed to
	Obsolete in protocol version 10, not version 9.
(Protocol Requests): Mark experimental calls with an "e".
(add-member-old): Typo fixed.
(unmark-text): This was introduced in protocol version 6, not 4.
(set-expire): Change status to Experimental.
(set-keep-commented): Change status to Experimental.
(set-pers-flags): Fix markup error.