Lower cassandra lib version so that Priam can build
Lower cassandra lib version so that Priam can build

vinaykumarchella/Priam,Netflix/Priam,eg-eng/Priam,muddman/Priam,pqdev/Priam,Clearleap/Priam,giosg/Priam,vinaykumarchella/Priam,scottmcmaster/Priam