migrate config settings correctly

[jcb91]

from old config name to new jupyter_nbextensions_configurator

fixes #667

also addresses the rename issue mentioned in #653 (comment) (although doesn't fix the bulk of #653)

[juhasch]

I think this PR looks good.
The one thing I am unsure about is the dependency on jupyter_nbextensions_configurator in configure_nbextension.py generally. IMO we should separate extensions and the configurator.

[jcb91]

we should separate extensions and the configurator

yes, I guess we could, it hadn't really occurred to me. In that case we'd need to edit more docs to reflect the change, as a lot of things refer to the config extension provided by this repo. Tbh, this PR is a bit redundant given #671, anyway (since 671 already does this migration).

[juhasch]

I think if we move the repository together with #671 to jupyter-contrib, we might leave this repo in a retired state (with links to the new repo). In this case it would make sense to decouple this repo from others, I believe.

[jcb91]

we might leave this repo in a retired state (with links to the new repo)

Yes, that sounds like a reasonable plan.

One slight issue (ha!) is that if we leave this repo here, we'll have to think of some way to sensibly migrate any outstanding issues to the new repo, and get people to add new ones in the correct place, etc. - perhaps asking github to migrate to jupyter-contrib might make that simpler?

[juhasch]

Yes, I guess migrating the complete repo is better in the end and will save us some headache.

[juhasch]

Closed after restructuring of repo