docs: function zipResults(req, res, gameInfo) {
      var archiver, archive;
  
      archiver = require('archiver');
      archive = archiver('zip');
  
      archive.on('error', function(err) {
          res.status(500).send({error: err.message});
      });
  
      res.attachment(gameInfo.info.name + '-data_' +
                     new Date().toISOString() + '.zip');
      archive.pipe(res);
      archive.directory(path.join(gameInfo.dir, 'data'), 'data');
      archive.finalize();
  }