/**
  * Export an event to ical.
  *
  * @return Response
  */
 public function export($id)
 {
     $event = Event::find($id);
     return response()->view('events.export', compact('event'))->header('Content-Type', 'text/calendar; charset=utf-8')->header('Content-Disposition', 'attachment; filename=' . str_slug($event->name) . '.ics');
 }