Remove use of SubFieldBase.

[kariantti]

No description provided.

[TheArchDev]

Any news on this pull request? I've been encountering Issue #68 so am interested!

[onlinejudge95]

3 Years down the line, are there any updates?

[lucaswiman]

I recently discovered that my fork referenced in this PR is still being used by some people. If you are still using this library, you should switch to the django built-in UUIDField. It's almost a drop-in replacement. If you run into errors in your migration files, either squash your migration history, or edit the migration files to use the django builtin. The latter is what I did years ago, though I've forgotten the details. (I think there's like one parameter difference, but it's a pretty rote change.)

I can't speak for @dcramer, but it seems pretty clear to me that there is no reason for continued maintenance in this library since Django now natively provides this functionality.