Bumped up the version, second attempt

Author: agronholm

docs/versionhistory.rst

@@ -3,7 +3,7 @@ Version history
 
 This library adheres to `Semantic Versioning 2.0 <http://semver.org/>`_.
 
-**4.10**
+**4.10.0**
 
 - Added the ``feed_data()`` method to the ``BufferedByteReceiveStream`` class, allowing
   users to inject data directly into the buffer