Add check to see that we're installed, and remove the .env that's created

app/Http/Kernel.php

@@ -25,6 +25,7 @@ class Kernel extends HttpKernel
      */
     protected $middlewareGroups = [
         'web' => [
+            \App\Http\Middleware\InstalledCheck::class,
             \App\Http\Middleware\EncryptCookies::class,
             \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
             \Illuminate\Session\Middleware\StartSession::class,