The admin docs are missing some details about enabling unified limits,
like oslo.limit configuration and Keystone roles. This adds more
information about what roles are needed for what actions, how to set
quota limits, quota enforcement, and unified limits in general.
This also removes a couple of tables from the user docs that show
obsolete/deprecated quota limits because they may be more confusing
than helpful considering we don't want new deployments to use them and
they add more clutter to the page.
More info is also added regarding the CLI commands for unified limits
and makes it consistent between the user and admin docs.
Change-Id: Id93f9997d1b217e0c2151c88323564f7a7fefc02
melanie witt
d45379c6b4