Fix a typo in reference to service_type to fix postsubmit tests (#215)
Fix a typo in reference to service_type to fix postsubmit tests (#215)

* Switch default service type back to LoadBalancer because the notebook
  test currently depends on that and there's no easy way to override it
  in the notebook.

* I didn't actually run the post-submit tests because I'm not sure how.

Related to #206
kubeflow/fairing,kubeflow/fairing