local. For local nodes, need to cull out jailed nodes if the phys node
is also going to reboot. Jailed nodes are rebooted serially since they
go down much faster.

Fix up recently added wait mode for jailed nodes. Also, I noticed that
I was having problems with events not filtering through stated before
going into the ISUP wait loop; I was catching the nodes still in ISUP
instead of SHUTDOWN. I added a sleep(2) before going into wait mode,
but this might be something to watch out for elsewhere too.