integration tests - Can't create user under Identity->Users

[Wu Hong Guang]

integration tests will meet problem if they are executed concurrently by the same user because bug 1403725.

we need create user automated to setup a multi-user integration testing environment

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/143027

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/143027
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=6f28ada3b84537baa9142bd6c8168b2cdc84889b
Submitter: Jenkins
Branch: master

commit 6f28ada3b84537baa9142bd6c8168b2cdc84889b
Author: whg <email address hidden>
Date: Fri Dec 19 16:07:35 2014 +0800

    Integration test - Create and delete user

    integration tests to create user under
    Identity->Users

    Closes-Bug: #1403741
    Closes-Bug: #1409061
    Partially implements blueprint: selenium-integration-testing
    Partially implements blueprint: multi-user-concurrent-test

    Change-Id: I3f96cc4f51d496e83ef947d51a722e8cf67b2779