Added tests for EvenWindow's emit attribute ability.

app/js/main.js

   console.log(e.target);
 }
 
+function handle_emitted(){
+  console.log("EMITTED EVENT!");
+}
+
 function initialize(DOC){
   EventWindow.listen("onclick", on_click);
+  EventWindow.enable_emitter_attributes();
+  EventWindow.listen("emitted-event", handle_emitted);
 
   var nespainter = new NESPainter(DOC.getElementById("painter"));
 

index.html

       <div class="home-menu pure-menu pure-menu-horizontal">
         <a class="pure-menu-heading" href="">Your Site</a>
         <ul class="pure-menu-list">
-          <li class="pure-menu-item pure-menu-selected"><a href="#" class="pure-menu-link">Home</a></li>
+          <li class="pure-menu-item pure-menu-selected"><a href="#" emit="emitted-event" class="pure-menu-link">Home</a></li>
           <li class="pure-menu-item"><a href="#" class="pure-menu-link">Tour</a></li>
           <li class="pure-menu-item"><a href="#" class="pure-menu-link">Sign Up</a></li>
         </ul>