Set default Cassandra version for tests using CCM to 3.2.1.
Set default Cassandra version for tests using CCM to 3.2.1.

mebigfatguy/java-driver,tolbertam/java-driver,tolbertam/java-driver,tolbertam/java-driver,mebigfatguy/java-driver,mebigfatguy/java-driver