Change logic for refreshing our state using runc to only poll
for conmon exit files when we first transition to the Stopped
state. After that, we should already have the exit code stored in
the database, so we don't need to look it up again.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #363
Approved by: TomSweeneyRedHat