Do not use root logger in State.

It allows to create custom logging configuration for celery logs in django settings
Do not use root logger in command.
Do not use root logger in events.
Do not use root logger in api.control.
Do not use root logger in api.tasks.
Do not use root logger in views.update.
Add pazur to authors.
Merge pull request #244 from pazur/patch-1

Do not use root logger.