title: Get friend without friend app user with FQL or Graph
body: <p>Now I get random 19 friend in my facebook with fql query : <code>SELECT uid, pic_square, name FROM user WHERE uid IN (   SELECT uid2 FROM friend WHERE uid1 = me() ) ORDER BY rand() limit 19</code>, <br>But now I don't know, how to get 19 friends not in <code>friendappuser</code>. </p>