Book section

Added a new section - the book section. I'd like to put there: (1) what I'm reading now,

(2) what I read in the past and my comments on them, and

(3) my book wish list.

It's only a prototype. I still have to enhance a lot of aspects but I haven't yet discovered all django potentials. In particular, I have to play a little bit more with the views and the templates.