anchor.diff:  HOST: http://prometheus-api.herokuapp.com/
  - 
  +
   --- Prometheus API ---
  - 
  +
   -- Exchange Resources --
   
   List all stock exchanges
  
positive.code: < 200
  < Content-Type: application/json
  {
    "total_pages": 1,
    "objects": [
      {
        "commodities": [],
        "id": 1,
        "name": "New York Stock Exchange",
        "symbol": "NYSE",
        "utc_created": "2013-05-18T04:08:32.702383",
        "utc_updated": "2013-05-18T04:08:32.702432"
      }
    ],
    "num_results": 1,
    "page": 1
  }
  
  List a particular stock exchange
  
negative.code:   "utc_created": "2013-05-18T04:08:32.702383",
    "utc_updated": "2013-05-18T04:08:32.702432"
  }
  
  Add new stock exchanges
  POST /exchange
  > Content-Type: application/json
  