Add clustering bin

bin/www.js

@@ -0,0 +1,19 @@
+var cluster = require('cluster');
+var cleaner = require('../modules/cleaner');
+var config = require('../modules/config');
+
+if (cluster.isMaster) {
+    var cores = require("os").cpus().length;
+    for (var i = cores; i > 0; i--) {
+        cluster.fork();
+    }
+
+    cluster.on('exit', function (worker, code, signal) {
+        console.error('Worker died. Rebooting a new one.');
+        setTimeout(cluster.fork, 100);
+    });
+
+    setInterval(cleaner.run, config.cleaning_interval * 1000);
+} else {
+    require('../server.js')();
+}