Added namespace to helm install notes (#617)

production/helm/loki-stack/Chart.yaml

 name: loki-stack
-version: 0.9.2
+version: 0.9.3
 appVersion: 0.0.1
 kubeVersion: "^1.10.0-0"
 description: "Loki: like Prometheus, but for logs."

production/helm/loki/Chart.yaml

 name: loki
-version: 0.8.2
+version: 0.8.3
 appVersion: 0.0.1
 kubeVersion: "^1.10.0-0"
 description: "Loki: like Prometheus, but for logs."

production/helm/loki/templates/NOTES.txt

 Verify the application is working by running these commands:
-  kubectl port-forward service/{{ include "loki.fullname" . }} {{ .Values.service.port }}
+  kubectl --namespace {{ .Release.Namespace }} port-forward service/{{ include "loki.fullname" . }} {{ .Values.service.port }}
   curl http://127.0.0.1:{{ .Values.service.port }}/api/prom/label

production/helm/promtail/Chart.yaml

 name: promtail
-version: 0.7.2
+version: 0.7.3
 appVersion: 0.0.1
 kubeVersion: "^1.10.0-0"
 description: "Responsible for gathering logs and sending them to Loki"

production/helm/promtail/templates/NOTES.txt

 Verify the application is working by running these commands:
-  kubectl port-forward daemonset/{{ include "promtail.fullname" . }} {{ .Values.port }}
+  kubectl --namespace {{ .Release.Namespace }} port-forward daemonset/{{ include "promtail.fullname" . }} {{ .Values.port }}
   curl http://127.0.0.1:{{ .Values.port }}/metrics