Test coverage improvement for FWaaS screens

[Tatiana Ovchinnikova]

FWaaS tests do not include some useful tests such as "update_rule_get", "delete_rule" and the same tests for policies and firewalls.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/69875

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/69875
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=5c4050683ecc6a3bb2c50ee3f8f116f87bd32d40
Submitter: Jenkins
Branch: master

commit 5c4050683ecc6a3bb2c50ee3f8f116f87bd32d40
Author: Tatiana Mazur <email address hidden>
Date: Wed Jan 29 18:36:38 2014 +0400

    Test coverage improvement for FWaaS screens

    This patch set adds 'delete' ans 'update_get' tests
    for policies, rules and firewalls and removes some
    redundant code from another tests.

    Closes-Bug: #1274136

    Change-Id: I5e00419621fd6aa14ec82a5a19887754e03c1d0e