Bugfix property groups management; fixed saving of property data; added missing csrf token.
Bugfix property groups management; fixed saving of property data; added missing csrf token.

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