Media aren't meant to be used anywhere, except when rendering. Clip can
now have subclips, we avoid using uuid when using Clip* is possible.
Correcting remaining crap in MediaListViewController and co.
View handle as many things as possible, but do not touch data.
ImportController doesn't have to do anything with deleting media. That's
the MediaContainer's job.
Probably many other things...

This doesn't restore the functionnality yet.

This breaks almost everything right now, but clean the code soooo
much...
Will be fixed in next commits.

Every uuid is now located in a clip. To select a media, use its base
clip's uuid.

Ho and please, don't clone an objet to get over its constness.

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

All the medias are managed by the library now.

Signed-off-by: Ludovic Fauvet <etix@l0cal.com>

Securing delete media by using removeMedia method that delete the media when at the end of metadata computing

Add of a delete button on the media cell and an hightlight selection.

Add of a clip list inside a media.
This list can now be shown by the arrow in the MediaCellView. This arrow is a generic clickableLabel.

bigger thumnails, no margin

not perfect yet, to be continued ...