- update to 0.16.0:
* Added `tempLib` property to Font, Layer and Glyph (like
defcon's)
* raise appropriate error when extras not installed
* Bring guideline invariants up to spec
* Made lazily loaded ufoLib2.Font objects pickleable by
automatically un-lazifying them in custom `__getstate__`
method (e0f3d6af).
* Added optional support for de/serializing all ufoLib2 objects
from/to JSON or MessagePack.
* This uses ``cattrs`` custom converters to
unstructure/structure ufoLib2 objects to/from basic
serializable data structures.
* See docstring in ``ufoLib2.serde::serde`` or #230 for
examples.

- Update to version 0.13.1
* Component.move: apply delta to offset directly rather than
* Typing: add GlyphSet protocol. More elegant than referring to
Layer and Glyph explicitly, which nicely avoids circular
* Add APIs Font.object_lib(obj) and Glyph.object_lib(obj) to
explicitly handle the new public.objectLibs mechanism of
attaching libs to anchors, guidelines, contours, components and
- skip python 3.6 build (no FontTools as it needs scipy)