angular/angular.dart — pull request #1621 by vicb (2014-12-11 23:40:51+00:00)
Title: feat(dccd): Observable support

Tweaks to the Observable / ChangeNotifier Support:

- Relax the requirement for Map and properties watch: they now only require to implement `Observable` vs `ChangeNotifier` before,
- Plug in Observable support for `Map` key watches.

/cc @yjbanov