Export the workers list

[gravis]

but don't expose workerFuncs

[gravis]

I created this because I want to be able to test that my worker is registered.

[benmanns]

Thanks for the contribution. In what sort of use case are you testing that a worker is registered?

[gravis]

Exactly as in https://github.com/gravis/goworker/blob/47c41eee3d1697086b36351383677e4f67ab55a7/workers_test.go I have tests for my workers, but if they're not registered, I will have runtime errors like:

1388601384386690670 [Critical] No worker for SomeJob in queue myQueue with args []

[gravis]

Globally, I would like to add more exported (public) methods like that, for example to provide runtime info of my workers through various interfaces (telnet, http, etc.).

[gravis]

Any news on this? (and the other issues, more generally) thanks