Added _getSurveyTakeForm to the Survey view.
Subclasses can overwrite this method to create their own form. ProjectGradingSurvey will likely be an example for this.
"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)