Update Frodo to support playlist browsing

Hi,

here's my code - I've tested that it runs against eyetv 3.3.3, but I can't comment on earlier or later versions. it's a bit laggy (possibly the copy and clean of characters in the archive.xml each time it fires up is the issue here - not sure if caching the plist might be an idea to resolve this, but anyway its not too bad for me. (I have an old mac mini 1.66Ghz with around 400 recordings in the library - obviously faster/slower machines or  bigger /smaller archives would make a difference here.)

I hope it helps. please ask if you want to know more.

Gareth