message: removed "text/json" payload " from consumes and produces section and updated ConsumerGroup:UserMetadata description.
diff: "https"
  ],
  "consumes": [
  - "application/json",
  - "text/json"
  + "application/json"
  ],
  "produces": [
  - "application/json",
  - "text/json"
  + "application/json"
  ],
  "security": [
  {
  "description": "The time the namespace was updated."
  },
  "serviceBusEndpoint": {
  - "externalDocs": {
  - "url": "http://msdn.microsoft.com/en-us/library/windowsazure/jj873988.aspx"
  - },
  "type": "string",
  "description": "Endpoint you can use to perform Service Bus operations."
  }
  },
  "userMetadata": {
  "type": "string",
  - "description": "The user metadata."
  + "description": "The user metadata is stored in String format with maximum length of 1024."
  }
  },
  "description": "Description of a Consumer Group properties."
  