Updated openstack/openstack
Project: openstack/keystone  389cf46350665ad5a0527492a877a07887508190

Migrate ID generation for users/groups from controller to manager

The implementation of multi-backend unique IDs requires that the
manager layer is in charge of ID generation.  This patch lays that
ground work.  No functional change should be observed from this patch.

Partially Implements: blueprint multi-backend-uuids

Change-Id: I2253aa9872d1c9950ef35851bd3f11d7ab5e433b