EZP-22781: Added an IOServiceInterface
EZP-22781: Added an ImageStorage Legacy IOService
EZP-22781: Refactored File FieldTypes SPI tests

Now takes configuration from the test container (service.ini).
Should now delete its files after testing.
Do not depend on current working directory to find config.php in tests
EZP-22781: Fixed review remarks
Merge pull request #836 from emodric/config_php_path_fix2

Do not depend on current working directory to find config.php in tests
EZP-22464: Sorted available languages in TranslationHelper
Merge pull request #828 from ezsystems/EZP-22781-preview_image_draft

Fixed exception when loading images with 'images-versioned' path