adds unitfied products object to sale_items/new
add quantity to gon.products on sale_items/new
test
inital work on a service object for sale_item.save
add a dummy product model
client side where product is item/batches
javascript clean up
fixes typo
work on sale_item_creator
sale_item validation
sale_item javascript error
work on sale_item_creator
sale_item create trough service
work on sale_items#new
fixing merge error
sale_item default price
sale_item remove debug alert
sale_item product handling
sale_item clean up