This patch does the following:
- Simplifies the sphinx configuration introduced in
https://review.openstack.org/371722 to reduce the
number of variables involved. The variables are
also ordered in the same way everywhere to make it
easier to read and troubleshoot.
- Simplifies some of the CLI guides to be more explicit
about the tag to checkout when cloning the git repo.
- Cleaned up some references which went to non-existant
documents.
- Added a link to the networking appendix.
- As per https://review.openstack.org/369650 the
backup directory for the upgrade process is now
the name of the source version the upgrade process is
working with.
Change-Id: Iee30a32f99a66d9facb049311cadf1b9a8b2170e
10a7d80b79