Bugfix: Workers may not be clearing their state correctly on shutdown

Author: defunkt

lib/resque/worker.rb

@@ -322,6 +322,7 @@ def run_hook(name, *args)
     # Unregisters ourself as a worker. Useful when shutting down.
     def unregister_worker
       redis.srem(:workers, self)
+      redis.del("worker:#{self}")
       redis.del("worker:#{self}:started")
 
       Stat.clear("processed:#{self}")