few minutes there is a poll, just in case. We also poll when first
starting up to make sure we are in sync with the RDZ.

Also implement Pause and Resume. This required changes to the how we
do power control. Geni Start/Stop is the wrong hammer, we need a
smaller, faster moving hammer for this. So I added admin only
power control to the Cluster interface. Needed some extra options
to power as well.

Failures are a bit of an issue though (at least on remote aggregates
like FEs). Generate email if power control fails, but not a blizzard
of it. Keep retrying.

Lets see how it goes.