Improvement of "import" statement in template file

[Noboru Arai]

In "horizon/conf/panel_template/url.py", "import" statement contradicts the following coding rule.
 ・Do not import more than one module per line
 *)https://github.com/openstack-dev/hacking/blob/master/HACKING.rst

url.py is used as template file,when "run_test.sh -m startpanel" is executed.

It is desirable to divide an "import" statement in a url.py beforehand.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/46887

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/46887
Committed: http://github.com/openstack/horizon/commit/bfa506e7eb9a8683e58c0aea1487bfea1cc48d54
Submitter: Jenkins
Branch: master

commit bfa506e7eb9a8683e58c0aea1487bfea1cc48d54
Author: Noboru Arai <email address hidden>
Date: Tue Sep 17 15:50:04 2013 +0900

    divides "import" statement in a url.py

    url.py is used as template file,when "run_test.sh -m startpanel" is executed.

    It is desirable to divide an "import" statement in a url.py beforehand.

    Change-Id: Ibc50e3efbae0d2696d796516a1387633e06cc060
    Closes-Bug: #1226427