title: Facebook connect integration (registration & login)
body: <p>I'm really struggling to make facebook connection working for my system. 
  What I want to do:</p>
  
  <ol>
    <li>When the user is not yet registered on facebook:
      <ol>
        <li>Fetch some user profile fields into my database (ideqally via my registration page already working for non facebook users)</li>
        <li>Log the user into my website</li>
        <li>Redirect the user into my homepage</li>
      </ol>
    </li>
    <li>What I've done so far :
      <ul>
        <li>Set up the application in FB</li>
        <li>Add the Facebook class from the github website and integrate some code to make it working</li>
        <li>Add additionnal paremeters to login/register facebook link.</li>
      </ul>
    </li>
  </ol>
  
  <p>I'm struggling to redirect the user after authorizing, to my register page (register/?facebook). The "Post-Authorize Redirect URL" field doesn't seem to work properly, I maybe do not fill the right field?</p>
  
  <p>My other question is, if my registration page uses a redirection show (index.php redirect to register.php), do the information given by facebook through the $_POST method would be available in the register.php page?</p>