Number of workers and Error: Redis connection to 127.0.0.1:6379 failed - read ECONNRESET

Thanks for Kue, it's pretty remarkable.

I'm having a problem with it and I was wondering if Kue has a limit on the number of workers?

In my app I've tried to fork 12 workers using the cluster module. When I run this it very quickly aborts with the error:

`Error: Redis connection to 127.0.0.1:6379 failed - read ECONNRESET`

If I hard-code the number of workers to just 1 it seems to work ok.

The issue names an application using Node.js's cluster module, Kue workers, and Redis at 127.0.0.1:6379, but no repository files or tests. Start by reproducing the failure with 12 workers and compare it with one worker; determine whether Kue imposes a worker limit or why Redis resets the connections. Done means the cause and a verified fix or documented limit are established.

Written by the indexing model from the issue text.