Bugfix: Subtract voucher price from cart price.
Bugfix: Subtract voucher price from cart price.

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