Update grafana and use preinstalled helm

[martell]

READY

[martell]

Tested this last night and everything is working

cadvisor-8cf5z                                              1/1       Running   0          19h
cadvisor-bjmxs                                              1/1       Running   0          19h
dashboard-grafana-5d864656b8-sjtbn                          1/1       Running   0          19h
monitoring-prometheus-kube-state-metrics-6bc48cd465-p76fz   1/1       Running   0          19h
monitoring-prometheus-node-exporter-gl9th                   1/1       Running   0          19h
monitoring-prometheus-node-exporter-kdlf5                   1/1       Running   0          19h
monitoring-prometheus-pushgateway-d4f679b7-trcgm            1/1       Running   0          19h
monitoring-prometheus-server-75bb797794-js8kb               2/2       Running   0          19h

Same instructions apply and it picks up the Prometheus metrics.
v5 looks like a very nice visual refresh I must say.

This is now ready for merging.

[jackfrancis]

@ritazh FYI, may I lean on you for comment/approval?

[ritazh]

@jackfrancis Yes I can take a look and test it.

cc @trstringer

[ritazh]

LGTM
Confirm this works on 1.8.11, 1.9.6, 1.10.0

[jackfrancis]

Thanks @ritazh!

[martell]

Thanks for reviewing and confirming @ritazh