Add port to scheduler so that leader election works
Add port to scheduler so that leader election works

Leader election compares against SelfAddr, so if there are multiple schedulers on the same host, they all get "elected".

See: https://github.com/flynn/discoverd/issues/41 for a long-term solution

Signed-off-by: Jonathan Rudenberg <3692bfa45759a67d83aedf0045f6cb635a966abf@titanous.com>

flynn-archive/flynn-controller,flynn-archive/flynn-controller