Sort download links by Unix or Windows

[sdarwin]

On stage, this is correct.

On production, the windows binaries are listed under Unix.

Imported with ./manage.py import_archives_release_data

[sdarwin]

This can be manually fixed in the django admin panel. And, should be.

The only reason to wait is to demonstrate what happened, so the developers can see that.

The archives are partially organized correctly, however the msvc binary downloads should be automatically marked as "Windows".

The issue seems sporadic. It has worked in the past. 7z and zip are categorized as Windows, which is right.

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Edit:

I manually updated the 1.90.0 files. It seems they can be set to "Windows" but not "Windows (binary)"?