add IN_WS constant in ws.php

git-svn-id: http://piwigo.org/svn/trunk@29250 68402e56-0260-453c-a942-63ccdbb3a9ee

ws.php

@@ -22,6 +22,7 @@
 // +-----------------------------------------------------------------------+
 
 define ('PHPWG_ROOT_PATH', './');
+define ('IN_WS', true);
 
 include_once(PHPWG_ROOT_PATH.'include/common.inc.php');
 check_status(ACCESS_FREE);