sync changes since last snapshot

doc/Guidebook.tex

@@ -2299,6 +2299,10 @@ Cannot be set with the `{\tt O}' command.
 The number of top line messages to save (and recall with `{\tt \^{}P}')
 (default 20). Cannot be set with the `{\tt O}' command.
 %.lp
+\item[\ib{msg\_window}]
+Use a screen-size window to show the previous messages with `{\tt \^{}P}'
+instead of showing them one at a time.  (Currently implemented for tty only.)
+%.lp
 \item[\ib{name}]
 Set your character's name (defaults to your user name).  You can also
 set your character's role by appending a dash and one or more letters of