Bumped verion to 0.13.0
Bumped verion to 0.13.0

This doesn't have huge new features but it does require upgrading
the thrift libs.

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