bug 1296540, use request.GET.dict() instead of request.GET.
bug 1296540, use request.GET.dict() instead of request.GET.

This is due to
https://docs.djangoproject.com/en/1.8/ref/request-response/#django.http.QueryDict,
which made request.GET return lists by default. Converting to a plain dict()
fixes that.

mozilla/elmo,mozilla/elmo,mozilla/elmo,Pike/elmo,Pike/elmo,mozilla/elmo,Pike/elmo,Pike/elmo