title: Missing observable methods RxJS 5.0.0-beta.0
body: <p>I'm having a problem using RxJS with Angular 2. Most of methods suggested from Typescript definition file are not defined on my Observable object like...</p>
  
  <p><a href="https://i.stack.imgur.com/6qhS4.png" rel="noreferrer"><img src="https://i.stack.imgur.com/6qhS4.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/m7OBk.png" rel="noreferrer"><img src="https://i.stack.imgur.com/m7OBk.png" alt="enter image description here"></a></p>
  
  <p>then I figured out, that methods does not exists on the Observable prototype.</p>
  
  <p><a href="https://i.stack.imgur.com/9hFNu.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9hFNu.png" alt="enter image description here"></a></p>
  
  <p><strong>I know a lot of things changed from version 4 to 5,so do I miss something?</strong> </p>
  
  <p>Browserify added it for me...
  <a href="https://i.stack.imgur.com/h3hmV.png" rel="noreferrer"><img src="https://i.stack.imgur.com/h3hmV.png" alt="enter image description here"></a></p>