Add debian-openstack source.list to debian
Add debian-openstack source.list to debian

We now offer debian-openstack packages[1] for jessie-newton. Give a
way for users to enable them.

[1] http://mirror.dfw.rax.openstack.org/debian-openstack/

Change-Id: Ie3343608fb4c3af77680fb959c717785bc2567c6
Signed-off-by: Paul Belanger <e7139c8e6c4ea75cc1c287ce081b2dc0f3ab39ec@redhat.com>

openstack-infra/project-config,Tesora/tesora-project-config,openstack-infra/project-config,Tesora/tesora-project-config