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This allows to remove dirty haks such as "emitSnapshotComputed"
Also, it breaks image snapshot computing for now.

If the end is reached before we stopped the media, there's something
wrong !

Commented out audio spectrum code.

We don't have to expose the subsystem that will store the settings.
All that matters is to differenciate project and software settings.

Signed-off-by: Hugo Beauzee-Luyssen <beauze.h@gmail.com>

As they're no longer used in libvlc.

Removed useless and old methods.

- Extends to 2010.
- Use VideoLAN as new legal entity.

Adding track count to clip property window