fixing#972

Might as well, right?

As mentioned in https://github.com/coreos/prometheus-operator/issues/924#issuecomment-362859346 .

fixing#947

Promnetheus -> Prometheus

Add role rules permissions to get metrics from kubelet

Cut 0.16.1

kube-prometheus: Add missing RBAC rules to kube-state-metrics

kube-prometheus: bump various versions

* Update kube-state-metrics rules to 1.2

* Run make generate to update all manifests

* Fix the helm chart kube-state-metrics rules

kube-prometheus: Add RBAC authorization to metrics endpoints

Bump prometheus to 2.0.0, prometheus-operator to 0.15.0, alertmanager to 0.12.0 and node-exporter to 0.15.1, grafana to 4.6.3
migrate prometheus alerts to yaml notation

Fix cluster:container_cpu_usage:ratio rule

kube-prometheus: Add Prometheus 2.0 rules

NAMESPACE feature in scripts implies it works. warnning ensures
that users are aware that its use requires further changes.

Alleviates #765