Update utils to new library syntax.

utils/tests/template/sample.dart

 // Copyright (c) 2011, 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.
 
-#import('dart:html');
+import 'dart:html';
 
 // Utility functions:
 String safeHTML(String value) {
   // TODO(terry): TBD
   return value;
 }
 
 /* Data Model */
 class Friend {
   String name;
@@ skipping 218 matching lines @@
   document.body.elements.add(clickableFriend.root);
   clickableFriend.friendElem.on.click.add((e) {
     var elemStyle = e.srcElement.style;
     String toggleColor = elemStyle.getPropertyValue("background-color") == "red" ? "white" : "red";
     elemStyle.setProperty("background-color", "${toggleColor}");
   });
 
   // Calling template inside of a template:
 //  document.body.elements.add(new Templates(friends).root);
 }