title: JSON encoding with backslashes
body: <p>I m using Alamofire and SwiftyJSOn to parse JSON output. It works very well however some sites give json with escaped output. I use Alamofire like below 
  </p>
  
  <pre><code>    Alamofire.request(.POST, url, parameters: param, encoding: .JSON)
          .responseJSON { (req, res, json, error) in
           var json = JSON(json!)
  </code></pre>
  
  <p>Site gives me JSON result with escaped string so SwiftyJSON can't decode it. How can I convert below</p>
  
  <pre class="lang-json prettyprint-override"><code>{
      "d": "{\"UniqeView\":{\"ArrivalDate\":null,\"ArrivalUnitId\":null,\"DeliveryCityName\":null,\"DeliveryTownName\":null},\"ErrorMessage\":null,\"Message\":null,\"IsFound\":false,\"IsSuccess\":true}"
  }
  </code></pre>
  
  <p>to something like </p>
  
  <pre class="lang-json prettyprint-override"><code>{
         "d": {
            "UniqeView": {
               "ArrivalDate": null,
               "ArrivalUnitId": null,
               "DeliveryCityName": null,
               "DeliveryTownName": null
            },
            "ErrorMessage": null,
            "Message": null,
            "IsFound": false,
            "IsSuccess": true
         }
      }
  </code></pre>