Updated openstack/openstack
Project: openstack/requirements  29c2e207d656c001580f59d4da1e4ffddde09397

Update glance_store dependency

Newer version of glance_store would be needed to fix swift multi-
tenant store in Glance.

Change-Id: Icc44d7d1042cf3100b7375b782e7f5f8afdea872