Fix Undefined constant CONFIG_SYNC_DIRECTORY (#64)

Fixes #60

Author: dwkitchen

scripts/composer/ScriptHandler.php

@@ -40,8 +40,8 @@ public static function createRequiredFiles(Event $event) {
       $fs->copy($drupalRoot . '/sites/default/default.settings.php', $drupalRoot . '/sites/default/settings.php');
       require_once $drupalRoot . '/core/includes/bootstrap.inc';
       require_once $drupalRoot . '/core/includes/install.inc';
-      $settings['config_directories'] = [
-        CONFIG_SYNC_DIRECTORY => (object) [
+      $settings['settings'] = [
+        'config_sync_directory' => (object) [
           'value' => Path::makeRelative($drupalFinder->getComposerRoot() . '/config/sync', $drupalRoot),
           'required' => TRUE,
         ],