Jsonapi-requests

------------------

- Added RETRIES configuration (default 3)
- Added retrying requests when there is network or server side problem.
- Added Python 3.6 to supported versions.
- Fixed handling relations with none value.

------------------

- Added basic orm. ([11](https://github.com/socialwifi/jsonapi-requests/pull/11))
- Added more parsers and serializers.
- Added pytest tests.
- Fix handling response 204 "No content" ([10](https://github.com/socialwifi/jsonapi-requests/pull/10))

----------------

- Append slash to API root if needed. ([2](https://github.com/socialwifi/jsonapi-requests/pull/2))
- Allow to automatically append slash. ([4](https://github.com/socialwifi/jsonapi-requests/pull/4))
- Set headers according to JSON:API specification. ([3](https://github.com/socialwifi/jsonapi-requests/pull/3))

----------------

- Initial lowlevel api.