Start work on adding unit tests to our cli code in order to have to
write less costly integration test.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Manager now auto-detects the address that an agent connects to the cluster
from and stores it. This is useful for many kinds of internal cluster
management tools.
Signed-off-by: Drew Erny <drew.erny@docker.com>
