Various fixes

app/partials/sidebar/navbar.controllers.js

@@ -0,0 +1,17 @@
+(function(){
+    'use strict';
+
+    angular
+        .module('app')
+        .controller('NavbarCtrl', NavbarCtrl)
+
+    NavbarCtrl.$inject = ['$scope', 'authentication', '$state'];
+    function NavbarCtrl($scope, authentication, $state) {   
+        var vm = this;
+
+        vm.logout = function () {
+            authentication.logout();
+            $state.go('login');
+        };
+    };
+})();