This patch make email address the user's username as requested in the TODO.

query_users.php is modified even if we will drop it in the future to be sure it works everywhere.

include/incl.php

@@ -46,7 +46,7 @@ function apidb_fullpath($path)
  */
 function apidb_header($title = 0)
 {
-    $username = isset($_SESSION['current'])?$_SESSION['current']->username:"";
+    $realname = isset($_SESSION['current'])?$_SESSION['current']->realname:"";
 
     // Set Page Title
     $page_title = $title;