Use 'openstack' command to replace the neutron commands
Use 'openstack' command to replace the neutron commands

Change-Id: Icc5e226d162dc1830b4d642304333686c90fcab4
Implements: blueprint use-openstack-command

openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals