Add auth_uri option

'Configuring auth_uri to point to the public identity endpoint is
required; clients may not be able to authenticate against an admin
endpoint.' If auth_uri is not set, such warning will be logged.

Change-Id: Ic7d317e04de921636e0c3fb900b4195c48f73671
Closes-Bug: #1279730
ref: https://github.com/openstack/python-keystoneclient/blob/master/keystoneclient/middleware/auth_token.py
Don't use &#151; entity

The rendering is broken with our tools (html and pdf output), and can be esaily
replaced.

Change-Id: Icf2279da8d77a933cd2cc7ad80f0c7ba1098398b
backport: none
Merge "Add auth_uri option"
Merge "Don't use &#151; entity"