jsonnet/kube-prometheus: bump prometheus-operator

jsonnet/kube-prometheus/alerts: Add namespace to TargetDown msg

Fix memory saturation dashboard

Generate manifests for fd5b77ca.

Upgrade to prometheus/node_exporter@d574b4b, which includes a better
metric for memory saturation.

See prometheus/node_exporter#1524.

Docs for rawGrafanaDashboards field

Propose in this https://github.com/brancz/kubernetes-grafana/pull/78

prometheus: Let name and replicas be set in _config

Update kube-state-metrics to 1.8.0

jsonnet: Update to latest kubernetes-mixin

Pick up new alerts for unreachable nodes.

Since 1664600b, manifests are built using `examples/kustomize.jsonnet`
instead of `example.jsonnet`.

This commit updates the dependencies in the `manifests` target to
reflect that change.

Before #260, the Prometheus name and number of replicas could be
configured in `_config.prometheus.name` and
`_config.prometheus.replicas` respectively.

It isn't the case anymore, which means that configurations that did set
a custom name for Prometheus will get a second Prometheus instance
called `k8s` when they upgrade kube-prometheus.

This commit adds back the ability to configure both of these parameters
in `_config`.

* Add metrics_path label to kubelet servicemonitor endpoints

* Set kubelet metric_path label in jsonnet

* Add generated kubelet servicemonitor

Since #132, `kube-rbac-proxy` resources can be configured in
`config.resources['kube-rbac-proxy']`, but the node-exporter daemonset
was still using hard-coded values.

This commit sets the request and limit resources to the configured
values for the `kube-rbac-proxy` container in the node-exporter pods.

* Avoid race condition when deploying quickstart example

The namespace and CRD creation must happen before any dependent objects
are created.  So we can put these in a separate directory (manifest/setup)
so they can be created before the other objects.

Some minor updates to the README and added a couple of scripts
for the quickstarts

Update travis script to avoid race condition

Signed-off-by: Paul Gier <pgier@redhat.com>

* simplify the example quickstart script and improve readme

Signed-off-by: Paul Gier <pgier@redhat.com>

* increase minikube memory to 6g for quickstart example