Updating Angular version

third_party/pkg/angular/demo/todo/README.md

 Angular.dart's Todo Demo
 ========================
 
 This demo is the most complete demo in the repository and a great
 starting point for quickly understanding Angular.dart
 
 Getting up and running
 ----------------------
 
 To run this demo, first clone the entire Angular.dart repository.
 
-Then, run pub install in this directory:
+Then, run ``pub serve`` in this directory:
 
 ```
-$ cd demo/todo; pub install
+$ cd demo/todo; pub serve
 ```
 
-Finally, open the demo/todo/index.html file in Dartium.
+Finally, open http://localhost:8080/index.html.
 
 The server is optional
 ----------------------
 
 There is a simple Node.js server in this directory, but you do
 not need to run it.  It is here to demonstrate the HTTP record /
 playback feature, snapshotting and dart2js.
 
 ```
 $ cd demo/todo; node webserver.js
 Web server is listening on port 3000
 ```
 
 To use dart2js, open http://localhost:3000/index.html in a non-Dartium web
 browser.
 
 To use snapshotting, open http://localhost:3000/snapshot/index.html, which
 will serve a zip file with all the files used in the application.
 
 To use HTTP record / playback, first open http://localhost:3000/index.html?record.
 Then, without restarting the server, open http://localhost:3000/index.html?playback.
 
 For more awesomeness, use HTTP playback together with snapshotting to isolate your
 Dart application from the server. http://localhost:3000/snapshot/index.html?playback