Fix unknown AbstractController import

app/Http/Controllers/Admin/SettingsController.php

@@ -2,16 +2,16 @@
 
 namespace CachetHQ\Cachet\Http\Controllers\Admin;
 
-use CachetHQ\Cachet\Controllers\AbstractController;
 use CachetHQ\Cachet\Models\Setting;
 use CachetHQ\Cachet\Models\User;
 use Exception;
 use GrahamCampbell\Binput\Facades\Binput;
+use Illuminate\Routing\Controller;
 use Illuminate\Support\Facades\Lang;
 use Illuminate\Support\Facades\Redirect;
 use Illuminate\Support\Facades\View;
 
-class SettingsController extends AbstractController
+class SettingsController extends Controller
 {
     protected $subMenu = [];
     protected $subTitle = 'Settings';