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

Per issue 593, append .yml to each filename used in the generated con…

Signed-off-by: Xabier Larrakoetxea <slok69@gmail.com>

Per issue 593, append .yml to each filename used in the generated configmap. I wasn't able to see alerts in the Prometheus UI until I did this

* Documentation: Added kubeadm documentation #618

This getting started guide covers a simple deployment of kube-prometheus
and assumes you have deployed using kubeadm.

Hopefully this helps clears up #618

* Moved documentation to appropriate folder, updated links.

* Minor documentation editing

Fixed referneces to Alertmanager.
Slightly stronger wording on changing grafana user/pass

Update rules