Replace deprecated multipart argument memfile_limit with spool_limit

[stollero]

Hello everyone,

memfile_limit has been replaced by spool_limit, see https://github.com/defnull/multipart/blob/master/multipart.py#L576.

Unfortunately they use self.spool_limit = memfile_limit or spool_limit, so if memfile_limit = 0 it will always be the default spool_limit instead.

[mgedmin]

Looks good if we make sure setup.py requires multipart >= the version that added the spool_limit argument. What version was it, by the way?

[mgedmin]

(You'll want to rebase on git master to fix the CI failure.)

[mgedmin]

I found a button on GitHub that allowed me to rebase your branch. Hope I didn't step on any toes while doing it!

[stollero]

Thanks for the review. I will update the setup.py 👍

Looks good if we make sure setup.py requires multipart >= the version that added the spool_limit argument. What version was it, by the way?

The bump to multipart v1.0.0