Updated validation configuration file.
Copied over some things from cart partial.
Styled checkout form. Switched to email and tel inputs.
Fixed broken incremental line item updates. Forgot to add data-product-id to a line item.
Added a total price amount partial and used it in cart to create a tfoot.
Updated ajax response with total price.
Streamlined some javascript.
Removed unneeded e.preventDefault.
Ported total price footer row to checkout page.
Broaden styles reach for tables.
Fixed both general and validation errors.