Make the chart work with helm 2.2 (#170)

Primarily this involved removing the release namespace, which is
controlled by helm.  If you want resources in a namespace you set
--namespace= with helm install, anything else leaves helm unable
to properly manage the resources.

I think the functions namespace won't work either on a delete.

charts/fission/templates/svc.yaml

@@ -2,7 +2,6 @@ apiVersion: v1
 kind: Service
 metadata:
   name: router
-  namespace: {{ .Release.Namespace }}
   labels:
     svc: router
     chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
@@ -20,7 +19,6 @@ apiVersion: v1
 kind: Service
 metadata:
   name: controller
-  namespace: {{ .Release.Namespace }}
   labels:
     svc: controller
     chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"