Documentation fixes

ChangeLog

+2004-06-19  David Byers  <byers@lysator.liu.se>
+
+	Documentation improvements:
+	* doc/lyskomd.texi (Aux-Item Definition File): Documented
+	supervisor-only and author-only more accurately (bug 530).
+
+	* doc/Protocol-A.texi (Aux-Item Types): Document letterbox, text
+	and other type parameters of aux-item definitions (bug 9).
+	(Person Status Types, Who Information, Session Information):
+	Improved documentation of the username field (bug 196).
+	(add-member): Fixed documentation of error codes (bug 199).
+	(async-i-am-on): Fixed error in the message description (bug 200).
+	(Importing and Exporting E-Mail): Improved documentation on what
+	aux-items affect importers (bug 201).
+
 2004-04-26  Per Cederqvist  <ceder@ceder.dyndns.org>
 
 	Added weblatte to the list of registered clients.