* Add external service cnames
* remove cruft
* update CI k8s version
* change CI k8s version
* min k8s ver for ext services
* trying k8s 1.5
* k8s 1.5 requires ports spec
* remove kruft
* update dns schema version
Change the CI setup for K8s to be simpler. Now it just creates a
set of objects via a yaml file, making it very easy to modify
the tests.
Implement PTR for services.