* Simplify black configuration to be closer to upstream defaults

Avoid extra configuration by simply going with Black defaults. This
allows removing some configuration options, thus simplifying the overall
configuration.

It also makes the code style closer to community conventions. As more
projects adopt black formatting, more code will look like the black
defaults.

Further, the default 88 tends to create more readable lines, IMO. The
black rationale is located at:
https://black.readthedocs.io/en/stable/the_black_code_style.html#line-length

* Update tests/test_api_jws.py

Co-authored-by: José Padilla <jpadilla@webapplicate.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update tests/test_api_jws.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Co-authored-by: José Padilla <jpadilla@webapplicate.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Follows upstream cryptography commit:
https://github.com/pyca/cryptography/commit/5528a3182fdd6ed1c44c126d451a87bcf39e79de

Since Python 3.2, this bytes to an int is a native feature.

* Setup GH Actions

* Remove src path changes

* Add dev extras

* Update USING_COVERAGE

* last update

* Upgrade pytest

* Remove 2.7 things

* Setup pre-commit hooks

* Run initial `tox -e lint`

* Fix package name

* Fix .travis.yml

Resolves #205, 

- JWKs for RSA and HMAC can be encoded / decoded using the .to_jwk() and
  .from_jwk() methods on their respective jwt.algorithms instances

- Replaced tests.utils ensure_unicode and ensure_bytes with jwt.utils versions