Fix the function import #76

Author: frag-seb

.gitignore

@@ -1 +1,2 @@
-/vendor/
+/vendor/
+composer.lock

Bootstraps/Symfony.php

@@ -5,6 +5,7 @@
 use PHPPM\Symfony\StrongerNativeSessionStorage;
 use PHPPM\Utils;
 use Symfony\Component\HttpFoundation\Request;
+use function PHPPM\register_file;
 
 /**
  * A default bootstrap for the Symfony framework
@@ -113,7 +114,7 @@ public function postHandle($app)
             $twigLoader = $container->get('twig.loader');
             Utils::bindAndCall(function() use ($twigLoader) {
                 foreach ($twigLoader->cache as $path) {
-                    ppm_register_file($path);
+                    register_file($path);
                 }
             }, $twigLoader);
         }