<h1>My First Greencat Angular 2 App</h1>
<add-todo (addTodo)="addTodoHandler($event)"></add-todo>
<br>
<todolist [todos]="visibleTodos"
          (toggleTodo)="toggleTodoHandler($event)">
</todolist>
<br>
<footer [filters]="filters"
        (setVisibilityFilter)="setVisibilityFilterHandler($event)">
</footer>
