- new confirmation dialog if users try to lazy update structures from Clipboard where current system != system marked for update (structure and signatures update now have the same logic)

- improved WebSocket initialisation

app/main/controller/admin.php

@@ -348,7 +348,7 @@ class Admin extends Controller{
      * @param string $type
      * @return \Log
      */
-    static function getLogger($type = 'ADMIN'){
+    static function getLogger($type = 'ADMIN') : \Log {
         return parent::getLogger('ADMIN');
     }