stopping disqus_def_name/email from inheriting drupal user/email fields

We're currently about to roll out disqus, but one of the problems we had is that when users attempt to post a message, the login form is displayed, and its pre-filled with their drupal user's email address and login name.

As all our users are logged in as a generic user, this functionality is not needed. Attached is a patch which makes this optional (but by default its on).

Thanks.