Use backbone to display taskmanager front end

www/scripts/apps/admin/tasks-manager/views/ping.js

@@ -0,0 +1,26 @@
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2014 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+define([
+    "jquery",
+    "underscore",
+    "backbone"
+], function ($, _, Backbone) {
+    var PingView = Backbone.View.extend({
+        render: function () {
+            var date = new Date();
+
+            this.$el.html(date.toISOString());
+
+            return this;
+        }
+    });
+
+    return PingView;
+});