Improved Daap support

[Nikolaj Hald Nielsen]

> Thinking to the future, I think we should actually bring back the
> media devices page which will allow us to do manual configuration of
> devices (such as usb sticks, iphones etc) which can't be setup
> magically (or on other platforms).


This makes sense. I guess in the future we will also need a place to
put options like what podcasts and playlists to automatically
synchronize with which devices.

- Nikolaj