Skip test of v2 protocol feature when testing with C* < 2 (JAVA-378).
Merge pull request #194 from olim7t/java378

Skip test of v2 protocol feature when testing with C* < 2 (JAVA-378).
Bump cassandra.version to 2.0.9
Better handling of dead connections (JAVA-204)
Throws NPE on null in addContactPoint (JAVA-291)