public function boot()
 {
     $menu = $this->app->make('admin.menu');
     $menu->addMenu(['Blog' => ['link' => ['link' => '#', 'text' => '<i class="fa fa-newspaper-o fa-lg"></i> Blog de noticias'], 'permissions' => ['blog-admin'], 'submenus' => ['List' => ['link' => ['link' => 'backend/blog', 'text' => 'Articulos'], 'permissions' => ['blog-admin']], 'Categories' => ['link' => ['link' => 'backend/blog-categories', 'text' => 'Categorías'], 'permissions' => ['blog-admin']], 'Tags' => ['link' => ['link' => 'backend/blog-tags', 'text' => 'Tags'], 'permissions' => ['blog-admin']]]]]);
     $this->loadRoutes();
     Article::observe(new SlugGeneratorObserver());
     Category::observe(new SlugGeneratorObserver());
     Tag::observe(new SlugGeneratorObserver());
 }