Update Twig.php

Fix error:
Slim Application Error
Details
Type: ErrorException
Code: 4096
Message: Argument 1 passed to Twig_Template::render() must be of the type array, object given, called in /var/mnt/aloxa.ru/library/Slim/Extras/Views/Twig.php on line 99 and defined
File: /var/mnt/aloxa.ru/library/Twig/Template.php
Line: 256