Expected Behaviour

CI tests on Apache Cassandra 3.9 should pass.

Actual Behaviour

CI tests on Apache Cassandra 3.9 in Travis started to fail recently, first identified in PR #25. Exact error message is:

...
shouldHaveDefaultConfigValues(com.builtamont.cassandra.migration.config.ClusterConfigurationTest)  Time elapsed: 0.007 sec  <<< FAILURE!
java.lang.AssertionError: 
Expected: is "localhost"
     but: was "127.0.0.1"
...

One possible cause is due to coercion of localhost input string to InetAddress type and back.

Steps to Reproduce

Run the integration test against the latest Apache Cassandra version (3.9).