Ember - donation system, bans, loading screen & landing/index page

• Added support for Memcached
• Bug fixes and improvements

Files modified:

• web/app/Controllers/MigrationController.php
• web/app/Helpers.php
• web/app/Models/Model.php
• web/bootstrap/app.php
• web/config.php
• web/public/js/adminvue.js
• web/public/js/forms.js
• web/resources/views/dependencycheck.twig