updated changes

CHANGES.rst

 Changelog
 =========
 
+5.0.4 (unreleased)
+------------------
+
 - Added support for serializing ZEO messages using `msgpack
   <http://msgpack.org/index.html>`_ rather than pickle.  This helps
   pave the way to supporting `byteserver
@@ -8,6 +11,11 @@ Changelog
   servers to support Python 2 or 3 clients (but not both at the same
   time) and may provide a small performance improvement.
 
+- Possibly fixed the deprecated and untested zeoctl script.
+
+- Removed zeopasswd, which no longer makes sense given that ZEO
+  authentication was removed, in favor of SSL.
+
 5.0.4 (2016-11-18)
 ------------------