First working version of the group collector.

app/Http/Middleware/Installer.php

@@ -54,6 +54,7 @@ class Installer
      */
     public function handle($request, Closure $next)
     {
+        Log::debug(sprintf('Installer middleware for URI %s', $request->url()));
         // ignore installer in test environment.
         if ('testing' === config('app.env')) {
             return $next($request);