Add full text search with !fts

See merge request !7

external_id for Spotify, Deezer and Facebook.

PARCE QU'ON SAIT JAMAIS

See merge request !6

Yes: mark it as broken
No: update data if needed

Need an external id

PARCE QU'ON SAIT JAMAIS

Fix facebook regex

Now matches facebook.com/video/video.php?v=fuckyourmomzuckerberg

See merge request !5

Now matches facebook.com/video/video.php?v=fuckyourmomzuckerberg

If the external id is precised, it will be used to dynamically retrieves
the URL when printing this content. This is useful for some source that
change the content's URL (like soundcloud).

Fuck soundcloud.

Facebook video support

Note : must add a 'facebook_access_token' entry in the configuration for
the module to work properly.

See merge request !4