Make sure all unit tests run on CassCI

It seems that some Windows unit tests aren't run sometimes on CassCI, and there's no error reporting for this. For instance, this test was introduced around the time build #38 would have happened, but has only run in builds #50-3 and #64:

http://cassci.datastax.com/view/cassandra-3.0/job/cassandra-3.0_utest_win32/lastCompletedBuild/testReport/org.apache.cassandra.cql3/ViewTest/testPrimaryKeyIsNotNull/history/