CockroachDB: Add imagePullPolicy to init container (#338)

incubator/cockroachdb/Chart.yaml

@@ -1,6 +1,6 @@
 name: cockroachdb
 home: https://www.cockroachlabs.com
-version: 0.1.0
+version: 0.1.1
 description: CockroachDB Helm chart for Kubernetes.
 sources:
   - https://github.com/cockroachdb/cockroach

incubator/cockroachdb/templates/cockroachdb-petset.yaml

@@ -97,6 +97,7 @@ spec:
             {
                 "name": "bootstrap",
                 "image": "{{.Values.BootstrapImage}}:{{.Values.BootstrapImageTag}}",
+                "imagePullPolicy": "{{.Values.ImagePullPolicy}}",
                 "args": [
                   "-on-start=/on-start.sh",
                   "-service={{ printf "%s-%s" .Release.Name .Values.Name | trunc 56 }}"