This improves on a few issues which are not frequent but do sometimes
come up:
1. Check that the daemon is up before attempting to do anything
docker-ey in provisioning Ubuntu
2. Set a max retries for SSH so that if a request fails it attempts
again before giving up
Also have annotated a few of the SSH options slightly better.
Signed-off-by: Nathan LeClaire <nathan.leclaire@gmail.com>