Add thumbnail links so they are loaded when addressbook is expanded.

apps/contacts/templates/part.contacts.php

@@ -1,9 +1,9 @@
 <?php
 foreach($_['books'] as $id => $addressbook) {
 	echo '<h3 class="addressbook" data-id="'.$id.'">'.$addressbook['displayname'].'</h3>';
-	echo '<ul class="contacts hidden">';
+	echo '<ul class="contacts hidden" data-id="'.$id.'">';
 	foreach($addressbook['contacts'] as $contact) {
-		echo '<li role="button" book-id="'.$contact['addressbookid'].'" data-id="'.$contact['id'].'"><a href="index.php?id='.$contact['id'].'">'.$contact['displayname'].'</a></li>';
+		echo '<li role="button" data-bookid="'.$contact['addressbookid'].'" data-id="'.$contact['id'].'"><a href="index.php?id='.$contact['id'].'" style="background: url('.link_to('contacts','thumbnail.php').'?id='.$contact['id'].') no-repeat scroll 0 0 transparent;">'.$contact['displayname'].'</a></li>';
 	}
 	echo '</ul>';
 }