Merged in changes from CVS HEAD

Merged in changes from CVS HEAD

Patches applied:

 * miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-10
   Update from CVS

 * miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-11
   Update from CVS

 * miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-12
   Add section on button package to lisp reference manual

 * miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-13
   Minor tweaks to Buttons section in lispref/display.texi

 * miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-14
   Update from CVS

git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-33