Use locally built local-path-provisioner for now

ansible/roles/apps/templates/settings/local-path-provisioner.yaml

@@ -5,3 +5,8 @@ nodePathMap:
 storageClass:
   defaultClass: true
   name: "local-storage"
+# We temporarily use our own build, as we want the human-readable directories,
+# but that is not yet released.
+image:
+  repository: "open.greenhost.net:4567/openappstack/openappstack/local-path-provisioner"
+  tag: "unreleased"