title: Does jasmine need sinon.js?
body: <p>I've seen examples on the web in which people use <a href="http://pivotal.github.com/jasmine/">jasmine</a> together with <a href="http://sinonjs.org/">sinon</a>. However, jasmine has support for spies (which as I understand is what Sinon does). So, the question is, is Sinon still useful when using Jasmine ? If Sinon is useful what exactly makes it a good addition to jasmine ?</p>
  
  <p>Cheers </p>