We don't call klog.InitFlags yet, because that will cause a flag
redefinition error until we get everyone to stop using glog. That
will happen when we update to k8s 1.13.
- removed all the systemd unit creation and use the volume mount code from kubele (SafeFormatAndMount)
- added some documentation to highlight the feature and show how it might be used in both ebs and ephemeral storage
- updated the api specs and machinery
- adding the dependecies on the services when the volume mounts are enable (should probably false this if they don't effect the docker filesystem)