fix request socket.io.js on localhost

debomatic-webui/views/layout.ejs

@@ -8,7 +8,7 @@
     <link rel="stylesheet" href="/stylesheets/style.css">
     
     <script src='//code.jquery.com/jquery-1.7.2.min.js'></script>
-    <script src='//localhost:3000/socket.io/socket.io.js'></script>
+    <script src='/socket.io/socket.io.js'></script>
     <script src="/libs/bootstrap/3.1.1/js/bootstrap.min.js"></script>
 
     <script src='/javascripts/utils.js'></script>