The worker receives a logger
Setup of a worker is now a separate part
The master rescues and logs errors from the worker

If the worker somehow raises an error, the master rescues it, logs it
and allows the worker to be restarted.
Bumping version
Replaced old name with new name
Added description of the logger-option
Added more about the logger

Specified how the logger behaves and how exceptions are logged.
Reformatted the stuff about options