#37 Show statistics of local files queried

[Tom Chance]

It'd be nice if Mutella could have a better statistics screen generally
in the web interface, but here is a veyr specific statistic that I'd like
to see added...

I like clients that show what files you are sharing, how many times
people have found them in a search that went through your node,
and how many times downloads have been attempted.

If mutella weren't so damn nice in every other respect I might
migrate back to Qtella for this ;-)