v1.1.1 05 Feb 2021
[New features]
* Command line tool `jwx` has ben completely reworked, and it is
now actually useful.
* JWKs can now be serialized into PEM files with ASN.1 DER format
data, which is useful when you need to work between JSON and PEM
data formats.
* Constants in jwa package now have can be listed via functions
in each category.
* jwe.Encrypt and jwe.Decrypt can now handle jwk.Key objects