The deployment guide is currently pointed at triplo-docs but it has been
requested that we actually publish a deployment guide. This change
extracts many of the installation doc pages and moves them into the
deploy-guide source tree. Once the deploy-guide is published, we will
follow up to reference the deployment guide from tripleo-docs.
Change-Id: I0ebd26f014180a92c6cf4ab0929d99b2d860796f
c6918e5da6