message: Locking oav to 0.4.37
  locking oav to working version as future version are broken.
diff: "json-schema-ref-parser": "^3.1.2",
  "mocha": "*",
  "oad": "^0.1.11",
  - "oav": "^0.4.37",
  + "oav": "0.4.37",
  "request": "^2.61.0",
  "request-promise-native": "^1.0.5",
  "z-schema": "^3.16.1"
  