Introduce boot.js: this finally makes it possible to load and run Todomvc

lib/polymer_element.dart

Index: lib/polymer_element.dart
diff --git a/lib/polymer_element.dart b/lib/polymer_element.dart
index 8f06f501a347bdff36a540cd9ffeaf20f0567f54..f08adb12afaa21facbcaf19f18f8393398914da0 100644
--- a/lib/polymer_element.dart
+++ b/lib/polymer_element.dart
@@ -8,10 +8,10 @@ import 'dart:async';
 import 'dart:html';
 import 'dart:mirrors';
 
+import 'package:custom_element/custom_element.dart';
 import 'package:mdv/mdv.dart' as mdv;
 import 'package:observe/observe.dart';
 
-import 'custom_element.dart';
 import 'observe.dart';
 import 'src/utils_observe.dart' show toCamelCase, toHyphenedName;
 
@@ -136,11 +136,8 @@ abstract class PolymerElement extends CustomElement with _EventsMixin {
 
       root.nodes.add(cloneTemplate(templateNode.content));
       // TODO(sigmund): use fancy-syntax as the default.
-      var syntax = templateNode.attributes['syntax'];
-
       // TODO(sigmund,jmesserly): mdv.bindModel should be async internally
-      Timer.run(() => mdv.bindModel(root, this,
-          syntax != null ? TemplateElement.syntax[syntax] : null));
+      Timer.run(() => mdv.bindModel(root, this));
     }
   }