Multiprocessing support

I'm looking for a task queue system and was initially attracted to Huey since it seems a lot simpler than Celery, but my tasks are CPU-bound and I'd like to take advantage of multiple cores, so threaded workers are kind of a deal breaker for me because of the GIL.

I may try my hand at implementing a multiprocessing-based consumer, but wanted to gauge your interest, and see if there was any particular way you thought I should go about it.