Update Prometheus, Node Exporter & Grafana (#119)

* Update Prometheus, Node Exporter & Grafana

* Update Prometheus to 2.10.0

* Add generated manifests

* Update lock reference to git sha

* Retrigger Travis

jsonnet/kube-prometheus/kube-prometheus.libsonnet

@@ -44,7 +44,7 @@ local configMapList = k3.core.v1.configMapList;
     namespace: 'default',
 
     versions+:: {
-      grafana: '6.0.1',
+      grafana: '6.2.2',
     },
 
     tlsCipherSuites: [

jsonnet/kube-prometheus/node-exporter/node-exporter.libsonnet

@@ -5,7 +5,7 @@ local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
     namespace: 'default',
 
     versions+:: {
-      nodeExporter: 'v0.17.0',
+      nodeExporter: 'v0.18.1',
       kubeRbacProxy: 'v0.4.1',
     },
 

jsonnet/kube-prometheus/prometheus/prometheus.libsonnet

@@ -1,12 +1,12 @@
-local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
 local k3 = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
+local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
 
 {
   _config+:: {
     namespace: 'default',
 
     versions+:: {
-      prometheus: 'v2.7.2',
+      prometheus: 'v2.10.0',
     },
 
     imageRepos+:: {