Update samples with latest polymer and Dartium changes

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
index dfb93c3186987960aee4f6f83569fd4cf68b1708..3835c931b99f183cf919ce9236e2b3a138681c62 100644
--- a/samples/third_party/todomvc/web/app.html
+++ b/samples/third_party/todomvc/web/app.html
@@ -10,9 +10,9 @@ BSD-style license that can be found in the LICENSE file.
   <section id="todoapp">
     <header id="header">
       <h1 class='title'>todos</h1>
-      <form on-submit="addTodo">
+      <form on-submit="{{addTodo}}">
         <input id="new-todo" placeholder="What needs to be done?" autofocus
-               on-change="addTodo">
+               on-change="{{addTodo}}">
       </form>
     </header>
     <section id="main">
@@ -33,7 +33,7 @@ BSD-style license that can be found in the LICENSE file.
           <li> <a href="#/completed">Completed</a> </li>
         </ul>
         <template if="{{app.hasCompleteTodos}}">
-          <button id="clear-completed" on-click="clear">
+          <button id="clear-completed" on-click="{{clear}}">
             Clear completed ({{app.doneCount}})
           </button>
         </template>