Need to add to docs information about the order in which the nodes deploy

[Anastasia Palkina]

When I analyzed Zendesk tickets I found questions about the order in which the nodes deploy.

We don't have the answer in our documentation.
We only have https://github.com/stackforge/fuel-web/blob/master/nailgun/nailgun/orchestrator/priority_serializers.py#L203-L226

[Irina Povolotskaya (ipovolotskaya)]

okay, who may help me with this task?

[Anastasia Palkina (apalkina)]

I think that you need to ask fuel-python team

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/135156

[Dmitry Borodaenko (angdraug)]

Patch still in review, postponed to 6.1.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/135156
Committed: https://git.openstack.org/cgit/stackforge/fuel-docs/commit/?id=02d728fe72254e0ead115061d424e2b6c0a6564b
Submitter: Jenkins
Branch: master

commit 02d728fe72254e0ead115061d424e2b6c0a6564b
Author: Meg McRoberts <email address hidden>
Date: Mon Nov 17 19:30:45 2014 -0800

    Nodes and roles -- terminology articles

    Create/improve articles for Nodes, Roles, plus one for each
    Role that Fuel recognizes.

    We have requests for more detailed information about how Fuel
    manages nodes and we also have requests for more accessible
    information about which roles can and cannot be combined. This
    CR does not completely solve the second request but it's a start.

    Add ref-arch/logical-setup/0800-node-internals article to give
    detailed information about the information Nailgun stores for nodes.

    Added tags to ref-arch/logical-setup files so they can be xref'ed

    A couple unrelated terminology articles were breaking the build
    so I had to add vertical spaces; this is why they are part of this CR.

    Change-Id: I76551658e975e2d910686df26c371be142238cc1
    Closes-Bug: 1371626
    Closes-Bug: 1385141