Update TodoMVC based on https://github.com/polymer/todomvc

samples/third_party/todomvc/web/app.html

Index: samples/third_party/todomvc/web/app.html
diff --git a/samples/third_party/todomvc/web/app.html b/samples/third_party/todomvc/web/app.html
deleted file mode 100644
index 5bcfb9292f6113ac3b379fd94673384489b4b33c..0000000000000000000000000000000000000000
--- a/samples/third_party/todomvc/web/app.html
+++ /dev/null
@@ -1,57 +0,0 @@
-<!--
-Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-for details. All rights reserved. Use of this source code is governed by a
-BSD-style license that can be found in the LICENSE file.
--->
-<link rel="import" href="router_options.html">
-<link rel="import" href="todo_row.html">
-<polymer-element name="todo-app">
-<template>
-  <section id="todoapp">
-    <header id="header">
-      <h1 class='title'>todos</h1>
-      <form on-submit="{{addTodo}}">
-        <input id="new-todo" placeholder="What needs to be done?" autofocus
-               on-change="{{addTodo}}">
-      </form>
-    </header>
-    <section id="main">
-      <input id="toggle-all" type="checkbox" checked="{{app.allChecked}}">
-      <label for="toggle-all"></label>
-      <ul id="todo-list">
-        <template repeat="{{app.visibleTodos}}">
-          <li is="todo-row" todo="{{}}"></li>
-        </template>
-      </ul>
-    </section>
-    <template if="{{app.todos.length > 0}}">
-      <footer id="footer">
-        <span id="todo-count"><strong>{{app.remaining}}</strong></span>
-        <ul is="router-options" id="filters">
-          <li> <a href="#/">All</a> </li>
-          <li> <a href="#/active">Active</a> </li>
-          <li> <a href="#/completed">Completed</a> </li>
-        </ul>
-        <template if="{{app.hasCompleteTodos}}">
-          <button id="clear-completed" on-click="{{clear}}">
-            Clear completed ({{app.doneCount}})
-          </button>
-        </template>
-      </footer>
-    </template>
-  </section>
-  <footer id="info">
-    <p>Double-click to edit a todo.</p>
-    <p>Credits: the <a href="http://www.dartlang.org">Dart</a> team.</p>
-    <p>
-      This example was built using a pre-1.0 version of Polymer.dart.
-      Learn more about
-      <a href="https://www.dartlang.org/polymer-dart/">Polymer.dart</a>
-      or
-      <a href="https://code.google.com/p/dart/source/browse/branches/bleeding_edge/dart/samples/third_party/todomvc/">view the source</a>.
-    </p>
-    <p>Part of <a href="http://todomvc.com">TodoMVC</a>.</p>
-  </footer>
-</template>
-<script type="application/dart" src="app.dart"></script>
-</polymer-element>