What's Changed
* Async Refactor by tedivm in https://github.com/tedivm/quasiqueue/pull/12
* Allow reader processes to run multiple async reader tasks at once.
* Fix logging to use proper logger.
* Allow reader, writer, and context function to have optional arguments, including `settings` to get the settings object (as a dict).
* Extensive rewriting of the test suite, with 90% coverage.
**Full Changelog**: https://github.com/tedivm/quasiqueue/compare/v0.4.2...v0.5.0