Worker process is responsible for the parsing and execution of a Job. It then broadcasts results to Stats / Manager.

Currently uses the terminate callback to track job success/failure .

Initialization:

• job_serialized - Full JSON payload of the Job.
• manager - Manager process pid.
• queue - The queue the job came from.
• :work_table - In process work ets table (TODO: Remove).
• stats - Stats process pid.
• namespace - Redis namespace
• host - Host name

Expects :work message after initialization to kickoff work.