Gigs added II

In the shows sections visible in the left column, bands, venues and cities are now all clickable. They link to pages showing all shows respectively from the band, in the venue or in the city you clicked. This way all shows I've visited can be found.

By going to the shows page, you can see all shows I've ever visited (well, the ones I know of, there's a few missing especially from shows in small clubs and bars of which I don't know the details any more).

In the next few days I'll probably add a way to see the shows sorted by year or month.