Add content disposition inline to json responses to help IE8

blueimp/jQuery-File-Upload#235
has a discussion about IE wanting to download the script instead of
running it. I really do not know if it is necessary here, but I want
this version to be bullet proof.

Author: sigurdga

fileupload/views.py

@@ -20,7 +20,10 @@ def form_valid(self, form):
         self.object = form.save()
         f = self.request.FILES.get('file')
         data = [{'name': f.name, 'url': settings.MEDIA_URL + "pictures/" + f.name, 'thumbnail_url': settings.MEDIA_URL + "pictures/" + f.name, 'delete_url': reverse('upload-delete', args=[self.object.id]), 'delete_type': "DELETE"}]
-        return JSONResponse(data, {}, response_mimetype(self.request))
+        response = JSONResponse(data, {}, response_mimetype(self.request))
+        response['Content-Disposition'] = 'inline; filename=files.json'
+        return response
+
 
 class PictureDeleteView(DeleteView):
     model = Picture
@@ -32,7 +35,9 @@ def delete(self, request, *args, **kwargs):
         """
         self.object = self.get_object()
         self.object.delete()
-        return JSONResponse(True, {}, response_mimetype(self.request))
+        response = JSONResponse(True, {}, response_mimetype(self.request))
+        response['Content-Disposition'] = 'inline; filename=files.json'
+        return response
 
 class JSONResponse(HttpResponse):
     """JSON response class."""