feat(view): adds event binding to view instantiation.

Only native non-bubbling events are supported by the commit.

modules/examples/src/hello_world/index_common.js

@@ -20,7 +20,8 @@ import {bootstrap, Component, Decorator, TemplateConfig, NgElement} from 'core/c
     // The template for the component.
     // Expressions in the template (like {{greeting}}) are evaluated in the
     // context of the HelloCmp class below.
-    inline: `{{greeting}} <span red>world</span>!`,
+    inline: `<div>{{greeting}} <span red>world</span>!</div>
+             <button (click)="changeGreeting()">change greeting</button>`,
     // All directives used in the template need to be specified. This allows for
     // modularity (RedDec can only be used in this template)
     // and better tooling (the template can be invalidated if the attribute is
@@ -33,6 +34,9 @@ class HelloCmp {
   constructor(service: GreetingService) {
     this.greeting = service.greeting;
   }
+  changeGreeting() {
+    this.greeting = 'howdy';
+  }
 }
 
 // Decorators are light-weight. They don't allow for templates, or new