v0.3.0

[TL;DR]

• colon character is not required for --auth anymore
• add CI/CD system; improve tests (unit + integration)
• add Docker image workflow and usage instruction docs

[Details]

• Features:

  • should not require having colon character #3

• Improvements:

  • should have integration tests #20
  • should add Docker support for dev, add Docker image #17
  • update supported python versions #1
  • add tests #2

• Tasks:

  • should have Docker image available and usage instruction #23