chore(pub): add primary authors, description and homepage to pubspec

modules/angular2/pubspec.yaml

@@ -1,8 +1,19 @@
 name: angular2
 version: 2.0.0-alpha.1
+authors:
+- Alex Eagle <eagle@post.harvard.edu>
+- Chirayu Krishnappa <chirayu@google.com>
+- Jeff Cross <crossj@google.com>
+- Misko Hevery <misko@google.com>
+- Rado Kirov <radokirov@google.com>
+- Tobias Bosch <tbosch@google.com>
+- Victor Savkin <vsavkin@google.com>
+- Yegor Jbanov <yjbanov@google.com>
+description: Angular 2 for Dart - a web framework for modern web apps
+homepage: https://github.com/angular/angular
 environment:
   sdk: '>=1.4.0'
 dependencies:
-  stack_trace: '1.1.1'
+  stack_trace: '>=1.1.1 <2.0.0'
 dev_dependencies:
   guinness: ">=0.1.16 <0.2.0"