title: how to access http.Server.connection property in express 3 router?
body: <p>I would like to use http.Server.connections in my express 3 route?
  Is there no way to get it anymore?</p>
  
  <p>Should I just 
     app.set('server', server);</p>
  
  <p>express.createServer() is deprecated and express applications no longer inherit from http.Server</p>
  
  <pre><code>var app = express(),
  server = http.createServer(app);
  server.listen(8080);
  ...
  module.exports = function (app) {
  
      app.get('/connections', function (req, res) {
          res.send({
              connections: app.connections 
              // app != http.Server in express 3
          });
      });
  
  };
  </code></pre>