Pysoa

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- BREAKING CHANGE: Remove the deprecated and unused ASGI Transport
- BREAKING CHANGE: Ensure that the service name passed to the client is always unicode

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- Recognize either settings variable name in non-Django services

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- Improve the msgpack serializer to support local-date and dateless-time objects
- Add extensive testing documentation and fix bug in ServerTestCase
- Add base status action class for creating easy healthcheck actions
- Ensure metrics are published after server startup
- Fix stub_action bug that made ActionErrors not work as side effects
- Improve transport error messages with service name

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- Add stub_action helper for use as decorator or context manager in tests

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- Use `master_for` correctly to reduce number of Redis connections

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- Fix issue causing client metrics to not record when transport cache enabled