code: function hookGetItemURL (rs) {
    if (rs._origBaseClientGetItemURL) { return; }
    rs._origBaseClientGetItemURL = BaseClient.prototype.getItemURL;
    BaseClient.prototype.getItemURL = function (/*path*/) {
      throw new Error('getItemURL is not implemented for Dropbox yet');
    };
  }
docs: Overwrite BaseClient's getItemURL with our own implementation
  
  TODO: getItemURL still needs to be implemented
  
  @param {object} rs - RemoteStorage instance
  
  @private