0.8.1-rc0

An urgent update to Release 0.8.1 to address an inability to execute the upgrade command. The upgrade command is needed for Pull Request #2116 - "UPGRADE: Fix multi-use invitation performance", which is necessary for (at least) deployments of ACA-Py as a mediator. The important update is Pull Request #2185 (listed below).

What's Changed

• Adds the upgrade command YML file to the PyPi Release by @swcurran in #2179
• Add link to recorded session about the ACA-Py Integration tests by @swcurran in #2184
• Update and automate ACA-Py upgrade process by @shaangill025 in #2185
• Create UnitTests.md by @swcurran in #2183
• 0.8.1-rc0 by @swcurran in #2190

Full Changelog: 0.8.0...0.8.1-rc0