Songbird 0.5

Last week the Songbird team released the 0.5 version of their fantastic music-library-player.

A lot of changes in the core and in the UI as stevel shown us at FOSDEM. If in the past were too easy to make addons, but now a 1-year-old baby could do one.

Congrats to all Songbird team, I hope in the future this player-organizer will be a reference in the music world.