Extracted a Book object from the view.  Modified the book_list template to work with book objects
Removed extra.txt
Minor CSS change to make pagination look like buttons.
Refactored book_list template to inherit from a  common base template.
Revactored book list view to use the shortcut 'render' method.  Consolidates chosing the template and requesting a RequestContext
Pulled functions from Book object back to the BDRObject.  Removed attrgetter
Merge pull request #61 from jrhoads/master

Refactoring: Extract Book Object From book_list view