title: Cannot convert value of type '[String : String?]' to expected argument type '[NSObject : AnyObject]?'
body: <p>When I use Parse 1.8.5 to upload data to Parse, this cloud code has compile error in "params" that I cannot debug it.</p>
  
  <pre><code>       let params = ["phoneNumber" : userPhoneNumber, 
                      "username": username,
                      "password": userPassword,
                      "Email": userEmail
                       ]  
  
          PFCloud.callFunctionInBackground("sendCode", withParameters: params, block: 
                { (response: AnyObject?, error: NSError?) -&gt; Void in
              if response?.localizedDescription != nil {
                  print(error)
                  var alert = UIAlertView(title: "Failure", message: "SignUp Error", delegate: self, cancelButtonTitle: "OK")
                  alert.show()
              } else {
                  self.activityIndicator.stopAnimating()
              }
          })
  </code></pre>