fix issue #4: add option to hide the logo

appinfo/app.php

@@ -36,7 +36,8 @@ Util::addHeader(
     [
         'href' => $stylesheet,
         'rel' => 'stylesheet'
-    ], ''
+    ],
+    ''
 );
 
 Util::addScript('side_menu', 'main');

appinfo/routes.php

@@ -19,6 +19,6 @@
 
 return [
     'routes' => [
-		['name' => 'Css#stylesheet', 'url' => '/css/stylesheet', 'verb' => 'GET'],
+		['name' => 'Css#stylesheet', 'url' => '/css/stylesheet.css', 'verb' => 'GET'],
     ],
 ];