title: using Facebook koala gem to like a post
body: <p>when using the koala gem, how do I like the current page?</p>
  
  <p>I thought it would be something like this...but it's not working</p>
  
  <pre><code>@graph.put_like("http://www.currentpage.com")
  </code></pre>
  
  <p>@graph is an authenticated object, I have it working for put_connections, put_wall, etc...However, put_like keeps returning false.  </p>