Updated openstack/openstack
Project: openstack/keystonemiddleware  facc3f00fe452fe2a51739ac12eef44012556521

Update oslo-incubator and switch to oslo.{utils,serialization}

Update to commit 9ce1d96fb2e075fcd5b9ddbee728c0ee49d2be56

Change-Id: I27e20f76fb0f4b858230b2c36e6ff960e1ec9d09