Merge pull request #5 from nerakhon/master

Modified JS code to handle changes in express 3

heat_tracer.js

@@ -2,15 +2,20 @@ var http = require('http');
 var libdtrace = require('libdtrace');
 var express = require('express');
 
-/* create our express server and prepare to serve javascript files in ./public 
+/* create our express & http server and prepare to serve javascript files in ./public 
 */
-var app = express.createServer();
+var app = express()
+  , http = require('http')
+  , server = http.createServer(app)
+  , io = require('socket.io').listen(server);
+
 app.configure(function(){
 	app.use(express.static(__dirname + '/public'));
     });
 
-var io = require('socket.io').listen(app);
-
+/* to decreate verbosity of socket.io 
+*/
+io.set('log level', 1);
 
 /* Before we go any further we must realize that each time a user connects we're going to want to 
    them send them dtrace aggregation every second. We can do so using 'setInterval', but we must
@@ -81,6 +86,6 @@ io.sockets.on('connection', function(socket) {
     } );
 
 
-app.listen(8000);
+server.listen(8000);