edit pass on T3,4,5, updated images

src/site/docs/tutorials/add-elements/examples/anagram/packages/browser/dart.js

 // 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.
 
 (function() {
 // Bootstrap support for Dart scripts on the page as this script.
 if (navigator.webkitStartDart) {
   if (!navigator.webkitStartDart()) {
     document.body.innerHTML = 'This build has expired.  Please download a new Dartium at http://www.dartlang.org/dartium/index.html';
   }
@@ skipping 19 matching lines @@
         var parent = scripts[i].parentNode;
         // TODO(vsm): Find a solution for issue 8455 that works with more
         // than one script.
         document.currentScript = script;
         parent.replaceChild(script, scripts[i]);
       }
     }
   }
 }
 })();