MSK Mux 0.2beta [Update]

[OXyGN]

New version of my Matroska Muxer here (http://members.fortunecity.fr/0xygn/MSK_Mux_0.2beta_update.zip) :).

Changes :

- Audio : MP3 Files support added
- Subtitles : SRT Files support added (need VSFilter.dll)
- Autoswitch output into .mkv, .mka, .mks
- Muxing progress bar added