Updated openstack/openstack
Project: openstack-dev/devstack  c98ae29aa9dfb5464e080d446bcdee2d00cf4215

further pypi libs conversions

glance_store and saharaclient were missed in the last round, make
them install from released clients in this patch.

Change-Id: I2e0ed2b7fb5994ae6abd92612a67ce5fd82b3f7e