add template 'app' label

openshift/templates/httpd.json

@@ -17,7 +17,8 @@
   },
   "message": "The following service(s) have been created in your project: ${NAME}.\n\nFor more information about using this template, including OpenShift considerations, see https://github.com/openshift/httpd-ex/blob/master/README.md.",
   "labels": {
-    "template": "httpd-example"
+      "template": "httpd-example",
+      "app": "httpd-example"
   },
   "objects": [
     {