rygel information

[Matthias Clasen <matthias clasen gmail com>]

So, looking over the discussion in ddl again, and talking to Bastien
again, here is my executive summary on Rygel:

- similar to file sharing, in spirit, probably more important than that nowadays
- UI will be merged with g-u-s if we accept it
- strings are translatable now
- works well in practice
- has the same issue with firewalls as other sharing stuff
- some design work needed on the 'video library' front

I give a +1