kubernetes: hide contrib (#320)

This is purely travis (and maybe local testing). Does not warrent (IMHO)
a contrib/ directory. Hide it in a .travis directory.

.travis/kubernetes/README.md

@@ -0,0 +1,43 @@
+## Test scripts to automate kubernetes startup
+
+Requirements:
+	docker
+	curl
+
+The scripts in this directory startup kubernetes with docker as the container runtime.
+After starting kubernetes, a couple of kubernetes services are started to allow automatic
+testing of CoreDNS with kubernetes. The kubernetes integration tests in `test/kubernetes_test.go` depend on having some sample services running. The scripts in this folder
+automate the launch of kubernetes and the creation of the expected sample services.
+
+To start up kubernetes and launch some sample services,
+run the script `start_k8s_with_services.sh`.
+
+~~~
+$ ./start_k8s_with_services.sh
+~~~
+
+Alternatively, the individual scripts may be run independently as needed:
+
+~~~
+$ ./00_run_k8s.sh && ./10_setup_kubectl.sh && ./20_setup_k8s_services.sh
+~~~
+
+After running the above scripts, kubernetes will be running on the localhost with the following services
+exposed:
+
+~~
+NAMESPACE   NAME         CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
+default     kubernetes   10.0.0.1     <none>        443/TCP   48m
+demo        mynginx      10.0.0.168   <none>        80/TCP    9m
+demo        webserver    10.0.0.28    <none>        80/TCP    2m
+test        mynginx      10.0.0.4     <none>        80/TCP    2m
+test        webserver    10.0.0.39    <none>        80/TCP    2m
+~~
+
+
+Kubernetes and all running containers can be uncerimoniously stopped by
+running the `kill_all_containers.sh` script.
+
+~~~
+$ ./kill_all_containers.sh
+~~~