A2 - added seeds, images and stylesheets
A2 - seed data
A2 - (special) moved css to app/assets
A2 - copied products/index template
 A2 - (not in book) renamed depot.css to zzz_depot.css to be loaded as last
 A2 - (not in book) renamed depot.css to zzz_depot.css to be loaded as last