update CHANGELOG for range-query mock bug
update CHANGELOG for range-query mock bug

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