Added image upding image uploader and modifying Products table.
Product and Cart playing nicely together via LineItem. Still need to capture orders for payment and mail order confirmations/updates.
Shows, Merch, and Carts are functional.
Incorporated merch controller/views into products scaffolding. Removed merch-related files except for css stylesheet.
Added users and authentication, orders, and mailer.
Added line drawing layouts, and tidied up a few things.
A little bit more tidying.