title: Memberof attribute doesn't exist in my phpldapadmin schema
body: <p>I'm pretty new to phpldapadmin and I'd like to use the memberof attribute to see which group an user is in, but I cannot find this attribute in the schema</p>
  <p><a href="http://i59.tinypic.com/2eex2xv.jpg" rel="nofollow noreferrer">http://i59.tinypic.com/2eex2xv.jpg</a></p>
  <p>How can I add this attribute to my schema?</p>