xrange not support python3

[Liang Bo]

In file: openstack_dashboard/dashboards/project/access_and_security/security_groups/forms.py:
    if icmp_type not in xrange(-1, 256):
    if icmp_code not in xrange(-1, 256):

1. xrange is not supported in python3
2. we could replace xrange here with range

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/64071

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/64071
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=7ee87f3f518f4c3082b40c4d7c4b64201c122f00
Submitter: Jenkins
Branch: master

commit 7ee87f3f518f4c3082b40c4d7c4b64201c122f00
Author: Liang Bo <[e-mail]>
Date: Wed Dec 25 16:05:01 2013 -0800

    Replace xrange in for loop with range

    xrange is not supported in python 3, so replace it with range.
    It's not a large range size, so no need to use six.moves.range.

    Change-Id: Ie62c3f1651d98f6b7d9a70fa1b485a9a04fd758f
    Closes-Bug: #1264182