Fix broken thumbnails in the backend
Fix broken thumbnails in the backend

This fixes broken thumbnails when having space or utf-8 characters in the filename.

Fixes: https://github.com/benjaminhirsch/typo3-azurestorage/issues/1

Inspired by https://github.com/andersundsehr/aus_driver_amazon_s3/blob/master/Classes/Driver/AmazonS3Driver.php#L160
benjaminhirsch/typo3-azurestorage