Prefer retry method from the task decorator if no retry method is giv…

…en to RetryException (#356)

This matches the already documented behavior.

Fix v0.20.0 version string to match regex (#353)

Add automated release workflow (#350)

* move version into package

* add automated release workflow

* bump version to 0.19.5

Release v0.19.4 (#348)

Release v0.19.3 (#337)

Release v0.19.2 (#334)

Release v0.19.1 (#332)

* Release v0.19.1

* README improvements

Release v0.19 (#327)

Release 0.18.2 (#311)

release 0.18.1