v0.31.0

• switch from jq to pyjq
• mssql :: switch from pymssql to pyodbc
• add python 3.8 support

v0.30.3

This version has been skipped due to trouble after re-upload files on pypi.
More informations: https://stackoverflow.com/questions/44517306/how-can-i-re-upload-package-to-pypi