The helm charts already do this, it is a change for the kubectl/yaml
examples, which have been using NodePort. NodePort has been
unnecessary since we've automated testing by using port-forward to
the Service. This brings the two different deployment methods more
in line.

We will add tests for LoadBalancer and NodePort Services.

The docs are now even more out of sync with the actual example/test
code, since they still reference the NodePort type.