To run the tests:
1. Install python-nose (easy_install nose)
2. Change Cassandra's cassandra.yaml to use ByteOrderedPartitioner
3. If you want to test authN/authZ, use SimpleAuthenticator and SimpleAuthority
   in cassandra.yaml and start Cassandra with:
   bin/cassandra -f -Dpasswd.properties=conf/passwd.properties -Daccess.properties=conf/access.properties
4. Run nosetests in the top directory
