* Bugfix: fixed accents issues in Mozilla Firefox
* Bugfix: Order of video files in FMLE modules
--> When there were more than 10 files to concatenate in
    FMLE modules, ffmpeg placed files 10, 11, ... just after
    file 1 due to file name. Now, files are renamed 001, 002, ...
    to make sure their order is always respected.