bumped version to 0.9.0 for cassandra 0.7 compat
bumped version to 0.9.0 for cassandra 0.7 compat

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