Updated openstack/openstack
Project: openstack/keystone  1d8ff295314a45557de1fcf65b198307912dd3a7

Add openid connect support

Add minor changes to the code to support the apache module
mod_auth_openidc (https://github.com/pingidentity/mod_auth_openidc)

Also add documention on how to setup mod_auth_openidc for
SP federation.

implements: bp openid-connect

Change-Id: Ia48e94905de0a9ee0e3c8d4f007075cba6e7e770