Update to the latest stable version of RxJava
Include thrift in the jar.

 - Cassandra loads thrift at runtime when we use BytesType.compare
Disable a failing test.

 - Disabling the test instead of removing it until I find out why agent.json (that the test depends on) was removed.
Fix hard coded MR path.
Fix deprecation warnings.
Added debug message when skipping ranged tombstone
Include timestamp in the sort.