code: public static Observable<ResultEvent<?>> resultObservable(
              RequestQueue queue, RequestQueue.RequestFilter filter) {
          return Observable.create(new QRequestResponseOnSubscribe(queue, filter));
      }
docs: Returns {@link Observable} of the successful results coming as {@link ResultEvent}
  
  @param queue  the {@link RequestQueue} to listen to
  @param filter the {@link io.apptik.comm.jus.RequestQueue.RequestFilter} which will filter
  the requests to hook to. Set null for no filtering.
  @return {@link Observable} of results