Support for observable models, fixes #259

test/data/input/conditional2_test.html

Index: test/data/input/conditional2_test.html
diff --git a/test/data/input/conditional2_test.html b/test/data/input/conditional2_test.html
index e2973d80bf255afe1f900db917d5af5b7e1e92b7..02817da835d1422422bb7c7eafe4c7c6c96df1a3 100644
--- a/test/data/input/conditional2_test.html
+++ b/test/data/input/conditional2_test.html
@@ -19,15 +19,15 @@
   </template>
   <script type="application/dart">
     import 'dart:html';
-    import 'package:web_ui/watcher.dart';
+    import 'package:web_ui/observe.dart';
     import 'common.dart';
 
     main() {
       window.setTimeout(() {
         cond = true;
-        dispatch();
+        deliverChangesSync();
         // in the end, we should see 'yes'
-        window.setTimeout(() => window.postMessage('done', '*'), 0);
+        window.setImmediate(() => window.postMessage('done', '*'));
       }, 0);
     }
   </script>