Antonio Cavedoni

Hi Peter, when working with UFO 3 sources, I guess it’d be useful to somehow be able to specify which layer to take the outline data from. That way, one...

With `fonttools.ufoLib` you can [get a list of all layer names](https://fonttools.readthedocs.io/en/latest/ufoLib/index.html#fontTools.ufoLib.UFOReader.getLayerNames) and use that to [get a `GlyphSet` with a specific `layerName`](https://fonttools.readthedocs.io/en/latest/ufoLib/index.html#fontTools.ufoLib.UFOReader.getGlyphSet). [`defcon`](https://github.com/robotools/defcon) is also aware of layers, as is...

Also running into this bug, also had to downgrade to django-storages 1.14.3.