Updated openstack/openstack
Project: openstack/sahara  e5e2596e1d3d39e515da7aceb9d58e68bde4848e

Fixed broken pep8 after keystone update

Keystone added memcache options to config. Added them to sahara
sample.

Change-Id: I74d0241bc4b4f4ef2b812ed448c0a9cb6ddae1bd