* Upgrade kubernetes to v1.13.0
* Remove all precense of scheduler.alpha.kubernetes.io/critical-pod in templates
* Fix cert dir
* Use kubespray v2.8 as baseline for gitlab
* Enable AutoScaler for CoreDNS
* Only use one template for dns autoscaler
* Rename a few variables for replicas and minimum pods
* Rename a few variables for replicas and minimum pods
* Remove replicas to make autoscale work
* Cleanup kubedns-autoscaler as it has been renamed