save a screenshot.

add screenshot.

add trackingco.de

support "+" as aliases to " " in hash.

remove heap, add gaug.es

viewport tag.

add heap analytics.

push everything to heroku.

fix unexpected behaviors with the URL changing and loading mechanism.

show selected books on the right with a sum.

saving and loading queries from urls.

better Found status messages.

CSS and offers formatted properly.

port to elm. a working version.

use React for the virtual dom.