Reimplement sysadmin with backbone

static/scripts/sysadmin-app/router.js

@@ -0,0 +1,49 @@
+/*global define*/
+define([
+    'jquery',
+    'backbone',
+    'common',
+    'sysadmin-app/views/side-nav',
+    'sysadmin-app/views/dashboard'
+], function($, Backbone, Common, SideNavView, DashboardView) {
+    "use strict";
+
+    var Router = Backbone.Router.extend({
+        routes: {
+            '': 'showDashboard',
+            'dashboard/': 'showDashboard',
+            // Default
+            '*actions': 'showDashboard'
+        },
+
+        initialize: function() {
+            Common.prepareApiCsrf();
+            Common.initAccountPopup();
+
+            this.sideNavView = new SideNavView();
+            app.ui = {
+                sideNavView: this.sideNavView
+            };
+
+            this.dashboardView = new DashboardView();
+            this.currentView = this.dashboardView;
+
+            $('#info-bar .close').click(Common.closeTopNoticeBar);
+        },
+
+        switchCurrentView: function(newView) {
+            if (this.currentView != newView) {
+                this.currentView.hide();
+                this.currentView = newView;
+            }
+        },
+
+        showDashboard: function() {
+            this.switchCurrentView(this.dashboardView);
+            this.sideNavView.setCurTab('dashboard');
+        }
+
+    });
+
+    return Router;
+});