Fixed: EZP-21357: Wildcards '*' not escaped for shell commands when using 'urlalias_iri' transformation group

Fixes: https://jira.ez.no/browse/EZP-21357

Depends on #729.

Unfortunately, ImageMagick implements lot of... magic(k), doing:
```bash
$ convert 'File*.jpg'' ...
```
**WILL** expand File*.jpg.

More info at: http://www.imagemagick.org/Usage/files/#read_meta