keystone_authtoken/auth_uri is deprecated [1]. Use www_authenticate_uri
instead.
keystonemiddleware is in requirements and lower constraints
should be increased because www_authenticate_uri was introduced
in keystonemiddleware 4.18.0.
[1] https://review.openstack.org/#/c/508522/
Change-Id: Iad00242c629d1a321c5067e705108396931402a2
While installing karbor, python-memcached packages will not be
installed as a dependency package. So it is better to remove
"memcached_servers" configuration from deployment document,
otherwise it will be very easy to encounter errors.
Change-Id: I1d1519353c8edd14b4553523d5b6f9ced978f9b5