selenium tests fail with Django 1.7

[David Lyle]

When using Django 1.7, the Selenium tests fail. Can't upgrade to 1.7 without fixing these.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/170624

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/170624
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=78eb15088e4dffabf0154c34a7d08a631ad92a92
Submitter: Jenkins
Branch: master

commit 78eb15088e4dffabf0154c34a7d08a631ad92a92
Author: David Lyle <email address hidden>
Date: Fri Apr 3 17:04:41 2015 -0600

    Fixing selenium tests to work with Django 1.7

    Django changed the functionality of django.test.LiveServerTestCase
    in 1.7 The old functionality is now supported by
    django.contrib.testing.StaticLiveServerTestCase

    This adds a version check to do a conditional import to pull in
    either the old test case class or the new.

    For more information see:
    https://docs.djangoproject.com/en/1.7/ref/contrib/staticfiles/#specialized-test-case-to-support-live-testing

    Closes-Bug: #1439169
    Change-Id: I182847a8e77de0b9c279eeb305b536d8cdf6c43b