BROOKLYN-101: avoid recordLocationEvent on rebind

- Previously on rebind we would call recordLocationEvent, which would
  try to get `inferMachineDetails` over ssh in the rebind thread
  (taking a long time).
- Now we don’t recordLocationEvent or recordApplicationEvent on
  startup or shutdown.
This closes #404
update index.md

spelling and SSH clarifications.
This closes #382
This closes #406