Rearranges the polymer package now that the old compiler is gone.

pkg/polymer/lib/src/build/polyfill_injector.dart

 // 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.
 
 /**
  * Final phase of the polymer transformation: includes any additional polyfills
  * that may needed by the deployed app.
  */
-library polymer.src.transform.polyfill_injector;
+library polymer.src.build.polyfill_injector;
 
 import 'dart:async';
 
 import 'package:barback/barback.dart';
 import 'package:html5lib/dom.dart' show Document, Node, DocumentFragment;
 import 'package:html5lib/parser.dart' show parseFragment;
 import 'common.dart';
 
 /**
  * Ensures that any scripts and polyfills needed to run a polymer application
@@ skipping 61 matching lines @@
             '<script src="packages/shadow_dom/shadow_dom.debug.js"></script>\n'));
       }
 
       transform.addOutput(
           new Asset.fromString(transform.primaryInput.id, document.outerHtml));
     });
   }
 }
 
 final _shadowDomJS = new RegExp(r'shadow_dom\..*\.js', caseSensitive: false);