lfs.checkout: pass the cart to calculate the voucher price.
lfs.checkout: pass the cart to calculate the voucher price.

diefenbach/django-lfs,pigletto/django-lfs,leadbrick/django-lfs,wisonwang/django-lfs,wisonwang/django-lfs,leadbrick/django-lfs,baffolobill/django-lfs,pigletto/django-lfs,baffolobill/django-lfs,diefenbach/django-lfs,wisonwang/django-lfs,baffolobill/django-lfs,pigletto/django-lfs,leadbrick/django-lfs,diefenbach/django-lfs