Updated cart implementation

Tonight I introduced a new shopping cart implementation to Booko. This new cart code is in preparation for allowing Booko users to create lists of books and to enable people to save these lists in their user accounts (coming soon).  The shopping cart will be one of these lists.

The new cart includes the ability to increase the number of any particular title without needing to visit that book’s page.

I wasn’t able to migrate existing carts across to the new system, but any book you’ve viewed recently will show up in the  “Your Recently Viewed” section.  Enjoy!