................... * add ``shadow_kwargs`` method to ``BaseWorker`` to make customising actors easier.
0.5.1
................... * reimplement worker reuse as it turned out to be useful in tests.
0.5.0
................... * use ``gather`` rather than ``wait`` for startup and shutdown so exceptions propagate. * add ``--check`` option to confirm arq worker is running.
0.4.1
................... * fix issue with ``Concurrent`` class binding with multiple actor instances.
0.4.0
................... * improving naming of log handlers and formatters * upgrade numerous packages, nothing significant * add ``startup`` and ``shutdown`` methods to actors * switch ``concurrent`` to return a ``Concurrent`` instance so the direct method is accessible via ``<func>.direct``
0.3.2
................... * improved solution for preventing new jobs starting when the worker is about to stop * switch ``SIGRTMIN`` > ``SIGUSR1`` to work with mac