replace port 4001, 7001 by port 2379, 2380

[Hua Wang]

It's better to use port 2379, 2380 instead of 4001, 7001.The ports are assigned for etcd as described in http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=etcd

[hongbin (hongbin034)]

Egor commented on the review [1] to explain an opposite opinion for switching the ports. We need to discuss this bug further.

[1] https://review.openstack.org/#/c/204366/10

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/209330

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/209330
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=68bfde02ca1aa77b54657cf61dbe60b62f226748
Submitter: Jenkins
Branch: master

commit 68bfde02ca1aa77b54657cf61dbe60b62f226748
Author: Hua Wang <email address hidden>
Date: Tue Jul 28 23:40:21 2015 +0800

    Replace etcd ports by its offical ports

    Port 2379 and 2380 are offical ports for etcd. So it's better
    to use them.

    http://www.iana.org/assignments/service-names-port-numbers/
    service-names-port-numbers.xhtml?search=etcd

    Change-Id: Ie0f32758a2ef0cce679a9a0c9a456bb08c5b36d2
    Closes-Bug: #1480025