Configuror

Changed

- Upgraded libraries to the latest versions.

Removed

- Dropped support for python 3.6 and python 3.7

Fixed

- Fixed a package version error.

Added

- Added utility functions to convert environment variables

Changed

- Updated documentation on `Config.load_from_yaml` usage.
- Updated method `Config.getenv` to accept two additional parameters: `default` and `converter`.

Added

- Added usage of nox package for test automation.

Changed

- Changed .travis.yml and appveyor.yml to take in account nox.
- Replaced pipenv by poetry to better manage package dependencies.

Added

- Added the link to the documentation in README.md.

Fixed

- Changed the deploy phase in .travis.yml.

Added

- First version of the package.