storaged now watches /dev and the queue.
Add serviced STOP message to serviced.cmds.
Fix up storaged's shutdown.

Can't seem to kill both our inotifywait and the queue's underlaying inotifywait.
So there is no real point passing both $! upwards for death. In the end, I
figured that kill -$$ was just a better idea for now.

rpigo_queue_wait really needs an official cleanup method.
Clean up rpigo-init.sh.