Updated openstack/openstack
Project: openstack/tempest  d9317e633273d04f5af6dbd7b2c32b37ed174149
null
Add python-swift client to the requirements

Since Id4b27ee70f420f7536b4c698eb1f3bba15dbd1e8 we have swift scenarios tests
which means that we must include swiftclient as a requirement.
Closes-bug: #1265936

Change-Id: Iee233867446cce098dbce9e5ab9ab1d4b19d97b3