title: Angular2 decorators are not defined
body: <p>My project builds with webpack but when I host the app from localhost I get an error.</p>
  
  <p>Uncaught ReferenceError: __decorate is not defined.</p>
  
  <p>Initially i get the error with the Injectable() decorator.  But when I uncomment that I get the same error but with extends.</p>
  
  <p>Ive created a repo that duplicates the errors.<br>
  <a href="https://github.com/shawnrmoss/decorators" rel="nofollow">https://github.com/shawnrmoss/decorators</a></p>
  
  <p>I suspect it has something to do with typings since the problem started when I had to change those definitions.<br>
  typings_orig.json has the original typings definitions</p>
  
  <p>Im no sure what is going on.  Hopefully someone can shine a light on this and help me out.</p>
  
  <p>Thanks.</p>