python-backoff-1.10.0-bp155.2.12

- update to 1.10.0
  * Support python 3.8
  * Allow sync decorator call from async function

- version update to 1.8.0
  - Change default log level from ERROR to INFO
  - Log retries on exception as INFO
  - Support Python 3.7
  - Give up on StopIteration raised in wait generators
  - Iterable intervals for constant wait_gen for predefined wait sequences
  - Nullary jitter signature deprecation warning
  - Custom loggers