capture error emitted by the server, which happens a lot with node 0.5+

Author: einaros

lib/socket.io.js

@@ -58,6 +58,9 @@ exports.listen = function (server, options, fn) {
     else
       server = require('http').createServer();
 
+    // default error handler
+    server.on('error', function() { });
+
     // default response
     server.on('request', function (req, res) {
       res.writeHead(200);