Add release date

CHANGES.rst

@@ -1,7 +1,7 @@
 Changelog
 =========
 
-0.3 (unreleased)
+0.3 (2013-05-21)
 ----------------
 
 - Add vCard support 
@@ -25,6 +25,8 @@ Changelog
   [jcbrand]
 - Use service discovery to show all available features on a room.
   [jcbrand]
+- Multi-user chatrooms are now configurable.
+  [jcbrand]
 
 
 0.2 (2013-03-28)