2016-11-25-setting-document-title-in-angular2-dart-improved-app-component-routes-improved.dart

 @RouteConfig(const [
   const Route(path: '/players', name: 'Players', component: PlayersComponent, useAsDefault: true),
   const Route(path: '/teams', name: 'Teams', component: TeamsComponent),
   const Route(path: '/fields', name: 'Fields', component: FieldsComponent, 
               data: const{'title': 'Ballparks'}),
   const Route(path: '/player/:id', name: 'PlayerDetail', component: PlayerDetailComponent,
               data: const{'title': 'Player'}),
 ])