feat(admin-plugin): update EntriesController #186

add ability to set:
- created_by
- published_by
- published_at
- created_at

site/plugins/admin/app/Controllers/EntriesController.php

@@ -3,6 +3,7 @@
 namespace Flextype;
 
 use Flextype\Component\Filesystem\Filesystem;
+use Flextype\Component\Session\Session;
 use Flextype\Component\Date\Date;
 use Flextype\Component\Form\Form;
 use Flextype\Component\Arr\Arr;