Mention usage of django_atomic_celery with celery3.1
Since args and kwargs are optional make sure they are using

expected type.
Merge pull request #3 from ticosax/docu-celery-app

Mention usage of django_atomic_celery with celery3.1
README cleanup.
Add AUTHORS file.
Cosmetic changes, per review.
Merge pull request #4 from ticosax/fix-apply_async-signature

Since args and kwargs are optional make sure they are using expected type.
Version 1.1.1.
Fix race condition in signal handling.
Code simplification.
Add signal for when django_atomic_celery is loaded.
Make 'loaded' attribute non-global.
Undo.
Version 1.1.2.