• Enabled executable bit for test files
  
• Removed localtime output in die and warn handlers
  
• All 3 delay options are consistent whether or not user_tasks is specified
  
• Removed logic around total_ended count -- replaced with new exit logic
  
• Lots of emphasis on the exit method -- workers can exit or die without
  impacting the manager (main) process. New callback options:
  on_exit_post and on_run_post
  
• Reap child/thread immediately when worker exits or dies
  
• Added LICENSE file
  
• Added Test::NoWarnings to test scripts
  
• Save worker state after spawning and job submission (task_id/task/params)
  
• Added new restart_worker method