Updated openstack/openstack
Project: openstack/tempest  da996366928d6dc458cf77129bc744b78ec6312e

Adds "user-password-update" to v3/test_users

This submission is to verify user-password-update functionality
and also added required support functions in both XML/JSON
interfaces.

Change-Id: Ifcac99095fb4e07ccaa2b6f87ac836c3959ef37a