Added parameter to google_analytics_ecommerce to make clearing of session optional.
Added parameter to google_analytics_ecommerce to make clearing of session
optional.

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