Merge pull request #362 from Treer/fontawesome

Update Font-Awesome to 4.6.1

include/conversation.php

@@ -658,7 +658,7 @@ function conversation(&$a, $items, $mode, $update, $page_mode = 'traditional', $
 				);
 
 				$star = false;
-				$isstarred = "unstarred icon-star-empty";
+				$isstarred = "unstarred fa-star-o";
 
 				$lock = (($item['item_private'] || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
 					? t('Private Message')