0.3.1 release

0.3.1 is finally out.

Lots of change were made from 0.3.0:
- XML-TV support was added
- The channel browser was improved
- Translations were updated
- Translation system was simplified
- bug fixes, ...

From the latest pre-release : A race condition in external tool handling was fixed. Translations were updated.

OST-Box is looking for contributors ! If you think you can help or you have ideas, post on the mailing list : ost-box-devel@lists.sourceforge.net