remove script versions

src/application/view/common/header.phtml

@@ -5,8 +5,8 @@
   <title><?php echo _('Login twister | Twisterarmy Cloud') ?></title>
   <meta name="description" content="Twisterarmy Cloud is the open source web interface to interact twister network without node installation." />
   <link rel="stylesheet" type="text/css" href="css/font.css" />
-  <link rel="stylesheet" type="text/css" href="css/bi.css?v=2" />
-  <link rel="stylesheet" type="text/css" href="css/common.css?v=4" />
+  <link rel="stylesheet" type="text/css" href="css/bi.css" />
+  <link rel="stylesheet" type="text/css" href="css/common.css" />
   <link rel="stylesheet" type="text/css" href="css/mobile.css" />
   <script src="js/jquery.js"></script>
 </head>