Updated openstack/openstack
Project: openstack/keystone  e52edc24263c6c1c6b7a72b7a6d1c59541057b4b

Update the docs that list sections in keystone.conf

The current docs are wildly out of date, and need to be updated
to actually show what are valid sections in keystone.conf

Change-Id: Icaced2499c6e05e0abfbb45abfbfd416a67d72e9