Definitive theme for photoblog

I was still experiencing terrible performances on the photoblog and I also had some theme problem, thus I spent the last few days working on it.

I updated Yapb, the really nice plugins used to convert WordPress into a complete photoblog system. This solved all the performance issues: the site now is really faster, especially showing thumbnails.

I also wrote a new theme. Light and minimalistic, halfway between the Carbon theme of the Gallery and Camera Obscura. Thanks to this update, after some weeks down, the tag navigation system is finally back again and full working.