Document bcc-recpt. A created person is a member of his mailbox.

ChangeLog

 1998-10-06  Per Cederqvist  <ceder@gratia>
+	
+	Document bcc-recpt.  A created person is a member of his mailbox.
+	* doc/Protocol-A.texi (The Misc-Info List): Document blank carbon
+	copies.
+	(create-person-old): Document that the new person will be a member
+	of his letterbox.
+	(create-person): Likewise.
 
 	Clarify the documentation about accept_async and make the
 	implementation conform to the documentation.