created orderitems branch
added create order_item method
products are displayed in the shopping cart
trying to set default values for order and order_item(not working)
Revert "trying to set default values for order and order_item(not working)"

This reverts commit 058e8d6b7cd853a940c9e828c5bb78ac0b83ae9d.
created cart view, added remove item  button to a cart
added validations to orders and order_items
validations raise error - commented out for now
Merging Elizabeth and Galina's branches
Merge branch 'orderitems' of github.com:audreycarlsen/sloth_express

Conflicts:
	app/assets/stylesheets/application.css
	app/views/products/index.html.erb
	app/views/products/show.html.erb
	config/routes.rb
	db/development.sqlite3