Log Message:
py-joblib: updated to 0.16.0

Release 0.16.0
--------------

- Fix a problem in the constructors of of Parallel backends classes that
  inherit from the `AutoBatchingMixin` that prevented the dask backend to
  properly batch short tasks.

- Fix a problem in the way the joblib dask backend batches calls that would
  badly interact with the dask callable pickling cache and lead to wrong
  results or errors.

- Prevent a dask.distributed bug from surfacing in joblib's dask backend
  during nested Parallel calls (due to joblib's auto-scattering feature)

- Workaround for a race condition after Parallel calls with the dask backend
  that would cause low level warnings from asyncio coroutines: