anchor.diff:  * ++processDefinition++: Resource that contains one or more process-definitions. This resource is picked up by the deployer.
   * ++processImage++: Resource that represents a deployed process definition's graphical layout.
   
  -_The dataUrl property in the resulting JSON for a single resource contains the actual URL to use for retrieving the binary resource._
  +_The contentUrl property in the resulting JSON for a single resource contains the actual URL to use for retrieving the binary resource._
   
   
   ==== Get a deployment resource
  
positive.code:   {
      "id": "diagrams/my-process.bpmn20.xml",
      "url": "http://localhost:8081/activiti-rest/service/repository/deployments/10/resources/diagrams%2Fmy-process.bpmn20.xml",
      "dataUrl": "http://localhost:8081/activiti-rest/service/repository/deployments/10/resourcedata/diagrams%2Fmy-process.bpmn20.xml",
      "mediaType": "text/xml",
      "type": "processDefinition"
    },
    {
      "id": "image.png",
      "url": "http://localhost:8081/activiti-rest/service/repository/deployments/10/resources/image.png",
      "dataUrl": "http://localhost:8081/activiti-rest/service/repository/deployments/10/resourcedata/image.png",
      "mediaType": "image/png",
      "type": "resource"
    }
  
negative.code: {
    "id": "diagrams/my-process.bpmn20.xml",
    "url": "http://localhost:8081/activiti-rest/service/repository/deployments/10/resources/diagrams%2Fmy-process.bpmn20.xml",
    "contentUrl": "http://localhost:8081/activiti-rest/service/repository/deployments/10/resourcedata/diagrams%2Fmy-process.bpmn20.xml",
    "mediaType": "text/xml",
    "type": "processDefinition"
  }
  