Improve self-consistency of auth response examples

The goal of this change is not to introduce anything new, but rather to
clean up the documentation we already have.

- All auth examples are now valid, self-contained examples of potential
  responses
- Filled in all the "..." and "--value--" in examples with
  self-consistent ID's, etc
- Removed outer 'token' container on some examples
- Removed token ID values from some response bodies
- Removed the user's 'role_links' attribute from some examples, a relic from v2
- Replaced conflicting examples of 'catalog' attributes with a FIXME

Change-Id: Ia4e09cd9becb471ca6e0d11f222a970fcdad43dc
Remove duplicate apis for list users/projects in a domain

The form:

GET /domains/{domain_id}/users
GET /domains/{domain_id}/projects

can be achieved in the same way by using the query filter on

GET /users
GET /projects

e.g.:

GET /users?domain_id="my domain"

Fixes Bug #1126048

Change-Id: I2d4e03d46fc9bd6b3d268f656f2eb83e81c1f5c5
Merge "Improve self-consistency of auth response examples"