laravel seeder disable observer
http://hellofrancesco.com/2015/12/08/a-quickie-dealing-with-observers-and-testing-in-laravel-5-1/
events und observer sind getrennt
events: YourModel::flushEventListeners();
observer+events:
Model::unsetEventDispatcher() Model::setEventDispatcher(new \Illuminate\Events\Dispatcher);
