bump version to release 0.9.0
bump version to release 0.9.0

stipple/cassandra_new,stipple/cassandra_new,cassandra-rb/cassandra,stipple/cassandra_new,stipple/cassandra_new,cassandra-rb/cassandra,cassandra-rb/cassandra,rightscale/cassandra,rightscale/cassandra,rightscale/cassandra,cassandra-rb/cassandra