v0.4.0

What's Changed

• docs: Update README.md after publishing to PyPi by @mortendaehli in #49
• test: Adding unit tests by @HaraldGSvendsen in #45
• Test/33 integration tests by @HaraldGSvendsen in #61
• feat: Set plotting libraries as optional dependencies by @mortendaehli in #67
• adding options to provide solver excecutable and solver options by @HaraldGSvendsen in #70
• fix: Bug fix in kpi calculation by @HaraldGSvendsen in #73

Full Changelog: v0.3.0...v0.4.0