The handle of the app is 1.
                        1. Create the bookmark.
                        The client sends:
                        {
  "jsonrpc": "2.0",
  "id": 1,
  "method": "CreateBookmark",
  "handle": 1,
  "params": [
    {
      "qInfo": {
        "qId": "BM01",
        "qType": "Bookmark"
      },
      "qBookmarkListDef": {
        "qType": "Bookmark"
      }
    }
  ]
}
                        The engine returns:
                        {
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "qReturn": {
      "qType": "GenericBookmark",
      "qHandle": 2
    },
    "qInfo": {
      "qId": "BM01",
      "qType": "Bookmark"
    }
  },
  "change": [
    1,
    2
  ]
}
                        The bookmark is created and the handle is 2. 
                        2.  Remove the bookmark.
                        The client sends:
                        {
  "jsonrpc": "2.0",
  "id": 2,
  "method": "DestroyBookmark",
  "handle": 1,
  "params": [
    "BM01"
  ]
}
                        The engine returns:
                        {
  "jsonrpc": "2.0",
  "id": 2,
  "result": {
    "qSuccess": true
  },
  "close": [
    2
  ]
}
                        The bookmark is removed.