exclude csrf_token from froxlor-config.json export; exclude system.updatecheck_data from settings-export

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

lib/Froxlor/Ajax/Ajax.php

@@ -365,6 +365,7 @@ class Ajax
 			$params = $_GET;
 			unset($params['action']);
 			unset($params['finish']);
+			unset($params['csrf_token']);
 			header('Content-disposition: attachment; filename=froxlor-config-' . time() . '.json');
 			return $this->jsonResponse($params);
 		}

lib/Froxlor/SImExporter.php

@@ -56,7 +56,8 @@ class SImExporter
 		'system.last_tasks_run',
 		'system.last_archive_run',
 		'system.leprivatekey',
-		'system.lepublickey'
+		'system.lepublickey',
+		'system.updatecheck_data',
 	];
 
 	public static function export()