Big merge from experimental to bleeding edge.

samples/third_party/dromaeo/Dromaeo.dart

 import 'dart:html';
-import 'dart:json';
+import 'dart:json' as json;
 import 'dart:math' as Math;
 import 'Suites.dart';
 
 main() {
   new Dromaeo().run();
 }
 
 class SuiteController {
   final SuiteDescription _suiteDescription;
   final IFrameElement _suiteIframe;
@@ skipping 75 matching lines @@
   final List<SuiteController> _suiteControllers;
   Function _handler;
 
   Dromaeo()
       : _suiteControllers = new List<SuiteController>()
   {
     _handler = _createHandler();
     window.on.message.add(
         (MessageEvent event) {
           try {
-            final response = JSON.parse(event.data);
+            final response = json.parse(event.data);
             _handler = _handler(response['command'], response['data']);
           } catch (e, stacktrace) {
             window.alert('Exception: ${e}: ${stacktrace}');
           }
         },
         false
     );
   }
 
   run() {
@@ skipping 104 matching lines @@
   }
 
   Element _byId(String id) {
     return document.query('#$id');
   }
 
   int get _suitesTotal {
     return _suiteControllers.length;
   }
 }