bump package version

ChangeLog.md

@@ -1,5 +1,7 @@
-# 0.4.5 to 0.4.6
+# 0.4.5 to 0.5.0
 * Support for the session element is now determined from stream features, the
   establishSession option was removed
+* The parser can now handle nonzas. Nonzas can be handled with a plugin
 * An initial roster can now be set with the initialRoster session configuration
   option
+* The JID parser can now handle "/" and "@" characters in the resource part

pontarius-xmpp.cabal

@@ -1,5 +1,5 @@
 Name:          pontarius-xmpp
-Version:       0.4.5
+Version:       0.5.0
 Cabal-Version: >= 1.9.2
 Build-Type:    Custom
 License:       BSD3