add Product Category select option to form
add partial: error messages
change category selection product edit form
add Add Product link to root
create form partial
format edit partial
edit product form so that negative values can't be selected
add submit button back to product form
split product functionality from review functionality.
create working review form and route to show/review page.
add Category model and categories controller
add Categories db table, add fake new_category_path to root page
set model associations between Product and Category
change review slidebar to number_field
Merge branch 'master' of https://github.com/kemccabe/betsy_rails

Conflicts:
	app/models/product.rb
	config/routes.rb
	db/schema.rb
fix merge conflict in routes file
change categories link on root
fix merge conflicts in product model and show_product view
add radio button to review form
Merge master into user