marionettejs实现todoMVC（更新版）

<div id="todoapp"> <div id="todo-header"></div> <div id="todo-toggleAll"></div> <section id="main"> <ul id="todo-list"></ul> </section> <footer id="todo-footer"> </footer> </div> <div id="instructions"> Double-click to edit a todo. </div> <div id="credits"> Created by <br /> <a href="http://jgn.me/">J&eacute;r&ocirc;me Gravel-Niquet</a>. <br />Rewritten by: <a href="http://addyosmani.github.com/todomvc">TodoMVC</a>. </div>