Edit a bundle straight from the cart

Customers can now change a bundle straight from the cart. A bundle where they chose a size, a colour, a model or a split of the items has an «Edit» button in the cart, at checkout and in the mini-cart. It opens the bundle page with the choices already made, and «Save changes» replaces the line in the same place, with the same number of bundles. If a combination has sold out since, the page says which one and its items go back to be split again. Until now the customer had to remove the bundle and add it again.