Merge #40: Add validation, logging, and callback support for @Retry d…

…ecorator

Approved-by: evroon
Priority: Normal
Auto-deploy: false

Merge #38: Make @Retry work on both sync and async functions, with ap…

…propriate typing

Approved-by: Qqwy
Priority: Normal
Auto-deploy: false

Fix release script

Merge #29: Bump to ``3.0.0`` and update classifiers

Approved-by: DanielNoord
Auto-deploy: false

Merge #19: Fix the name of ``TestClock``, upgrade code and release ne…

…w version

Approved-by: DanielNoord
Auto-deploy: false

Bump version to ``1.2.1``

This just includes a typing change and some clean up.

Merge #15: Prevent retry state namespaces leak across context

Approved-by: LeonardBesson
Auto-deploy: false

Bump to 1.1.0

Bump to 1.0.0

Make exceptions.py documentation more generic