message: change service name to jhipster-registry
diff: "gcpCloudSqlInstanceName": "jhipsterproject:us-central1:jhipster",
  "gcpCloudSqlUserName": "root",
  "gcpCloudSqlDatabaseName": "jhipsterregistry",
  - "gaeServiceName": "default",
  + "gaeServiceName": "jhipster-registry",
  "gaeLocation": "us-central",
  "gaeInstanceClass": "F2",
  "gaeScalingType": "automatic",
  