Merge pull request #75 from lucasfoussier/fix-depreceated-extension

Fixing depreceated HttpKernel\DependencyInjection\Extension class which is now considered internal

DependencyInjection/NzoEncryptorExtension.php

@@ -14,7 +14,7 @@
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
-use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+use Symfony\Component\DependencyInjection\Extension\Extension;
 
 class NzoEncryptorExtension extends Extension
 {