Suggestion: Provide a suitable, default `namespace` for each task

[Andrew-S-Rosen]

I see the warning that in the future, the redun_namespace variable will need to be set on the module-level and/or the namespace provided in the @task. Personally, I would like to make an alternate suggestion: make the default namespace for each task be task.func.__module__. The combination of the __module__ in the namespace and the __name__ in the name will yield a unique identifier in virtually all practical cases.