fixes #593, delete by blocks of 100 photos, with a progress bar

ws.php

@@ -504,6 +504,7 @@ function ws_addDefaultMethods( $arr )
       array(
         'image_id' =>   array('flags'=>WS_PARAM_ACCEPT_ARRAY),
         'pwg_token' =>  array(),
+        'return_details' => array('default'=>false, 'type'=>WS_TYPE_BOOL),
         ),
       'Deletes image(s).',
       $ws_functions_root . 'pwg.images.php',
@@ -1024,4 +1025,4 @@ enabled_high, registration_date, registration_date_string, registration_date_sin
     );
 }
 
-?>
+?>