Support for the Media Library

[stevejburge]

We've had several requests to have revisions for media files.

Uploading a new version would make the original post a revision post type which also disables its public access. The one difficulty is with URL references in content — the new version should probably inherit the original so that it doesn’t 404 or needs to be rewritten.

[stevejburge]

https://github.com/robertdevore/media-file-versioning/