breacharbiter: fix revoked funds calculation
breacharbiter: fix revoked funds calculation

Since we also must count revoked funds swept from second level revoked
outputs, we move the funds counting into the updateBreachInfo method,
where we already are checking whether the spend is by us or the remote.

We also clean up the logs a bit, to log the incremental sweep of funds
that now can happen.

aakselrod/lnd,aakselrod/lnd