code: function generateRELEASES(entries) {
      return _.map(entries, function(entry) {
          var filename = entry.filename;
  
          if (!filename) {
              filename = [
                  entry.app,
                  entry.version,
                  entry.isDelta? 'delta.nupkg' : 'full.nupkg'
              ].join('-');
          }
  
          return [
              entry.sha,
              filename,
              entry.size
          ].join(' ');
      })
      .join('\n');
  }
docs: Generate a RELEASES file