Added logic for every GHOP specific model. Defined logic for every model defined for GHOP. These logics do nothing special now. They are just inherited from their parent classes. Necessary GHOP specific logic will be added later as necessary. Reviewed by: Lennard de Rijk

"Decorator for views that gzips pages if the client supports it."

from django.utils.decorators import decorator_from_middleware
from django.middleware.gzip import GZipMiddleware

gzip_page = decorator_from_middleware(GZipMiddleware)