anchor.diff:  
       + Body
   
  -	    { 
  -		"input-url": "http://s3.com/image.png"
  -	    }
  +            { 
  +                "input-url": "http://s3.com/image.png"
  +            }
   
   + Response 201 (application/json)
   
  
positive.code: 
              { 
                  "dataset-id": "<dataset-id>",
  		"specification-url": "http://s3.com/mnist_solver.prototxt",
                  "specification-net-url": "http://s3.com/mnist_train_test.prototxt"
              }
  
  
negative.code:                   "training":{  
                       "description":"The training portion of the dataset.",
                       "type":"object",
               "properties":{
                   "datafile-id": {
                   "type": "string",
                   "description": "The id of the Datafile object"
               },
                   "split-percentage": {
                   "type": "number",
                   "description": "The percent of datafile that should be used for training.  Or 0.0 if passing two distinct Datafile id's in training/testing"
               }
               }  
                    },
                    "testing":{  
                       "description":"The testing portion of the dataset.",
                       "type":"object",
               "properties":{
                   "datafile-id": {
                   "type": "string",
                   "description": "The id of the Datafile object"
               },
                   "split-percentage": {
                   "type": "number",
                   "description": "The percent of datafile that should be used for training.  Or 0.0 if passing two distinct Datafile id's in training/testing"
               }
               }  
                    }
                  }
                      "required":[  
                          "training",
                          "testing"
                      ],
                 "additionalProperties":false
              }
  
  