Itest cleanup

Fixed broken itests. This is with `stop-futures-fixed` merged because otherwise ... couldn't run tests. 

If you run `ITestDtUpdateOperation` the `testCrdtCounter()` will still fail. This is due to the counter fetch being performed by L109 comes back with the PB message saying there is a context (hasContext() == true) but the context is a zero-length ByteString. This looks like a Riak CRDT bug, need to verify.