Remove filtering out of frames with no versions.

This does not preserve ordering defined as -observation_date on the model. Need to find a better way of doing this.

archive/frames/views.py

@@ -72,8 +72,6 @@ def get_queryset(self):
             .prefetch_related('version_set')
             .prefetch_related(Prefetch('related_frames', queryset=Frame.objects.all().only('id')))
             .prefetch_related('thumbnails')
-            .annotate(num_versions=Count('version'))
-            .filter(num_versions__gt=0)
         )
         if self.request.user.is_superuser:
             return queryset
@@ -168,7 +166,7 @@ def zip(self, request):
                 datetime.date.strftime(datetime.date.today(), '%Y%m%d'),
                 frames.count()
             )
-            body = build_nginx_zip_text(frames, filename, uncompress=request_serializer.data.get('uncompress'), 
+            body = build_nginx_zip_text(frames, filename, uncompress=request_serializer.data.get('uncompress'),
                                         catalog_only=request_serializer.data.get('catalog_only'))
             response = HttpResponse(body, content_type='text/plain')
             response['X-Archive-Files'] = 'zip'