v0.0.53 - tasks: Unify message format with other loaders - tasks: Use celery's shared_task decorator - tests: Migrate to pytest-mock's fixture - loader.git: Register git worker - tasks: Rename task according to production - git: Unify loaders constructor - Fix a typo reported by codespell - Add a pre-commit config file - Migrate tox.ini to extras = xxx instead of deps = .[testing] - De-specify testenv:py3 - Drop version constraint on pytest < 4 - Include all requirements in MANIFEST.in - Add support for symbolic references