Reference all current release documentation
Reference all current release documentation

This patch sets up the index to reference the documentation for each
release. This provides a clearer starting point for deployers who
need to follow documentation which meets their needs for either
a development-focused deployment, or a stable deployment.

Change-Id: I37844e64f36223d86ed8c648338323fe6241ac6b

git-harry/os-ansible-deployment,Logan2211/openstack-ansible,mrda/openstack-ansible,robb-romans/openstack-ansible,open-switch/infra_openstack-ansible,bunchc/openstack-ansible,major/os-ansible-deployment,cfarquhar/openstack-ansible,os-cloud/os-ansible-deployment,bunchc/openstack-ansible,mrda/openstack-ansible,git-harry/os-ansible-deployment,openstack/openstack-ansible,cloudnull/os-ansible-deployment,mancdaz/openstack-ansible,cfarquhar/openstack-ansible,mancdaz/openstack-ansible,robb-romans/openstack-ansible,stackforge/os-ansible-deployment,open-switch/infra_openstack-ansible,BjoernT/os-ansible-deployment,mrda/openstack-ansible,yanyao/newton,Logan2211/openstack-ansible,yanyao/openstack-ansible,major/os-ansible-deployment,open-switch/infra_openstack-ansible,BjoernT/openstack-ansible,major/openstack-ansible,yanyao/openstack-ansible,os-cloud/os-ansible-deployment,openstack/openstack-ansible,BjoernT/os-ansible-deployment,git-harry/os-ansible-deployment,major/openstack-ansible,weezer/openstack-ansible,stackforge/os-ansible-deployment,yanyao/newton,BjoernT/openstack-ansible,cloudnull/os-ansible-deployment,BjoernT/os-ansible-deployment,weezer/openstack-ansible