Resolved issue 0000702: Code Injection with picture comment

Merge BSF 2029:2030 into branch-1_7

git-svn-id: http://piwigo.org/svn/branches/branch-1_7@2031 68402e56-0260-453c-a942-63ccdbb3a9ee

comments.php

@@ -411,7 +411,7 @@ SELECT id, name, permalink, uppercats
         'U_PICTURE' => $url,
         'TN_SRC' => $thumbnail_src,
         'ALT' => $name,
-        'AUTHOR' => $author,
+        'AUTHOR' => trigger_event('render_comment_author', $author),
         'DATE'=>format_date($comment['date'],'mysql_datetime',true),
         'CONTENT'=>trigger_event('render_comment_content',$comment['content']),
         ));