Range() in for loop need a refactor

[Zhang Xin]

In some files, range was called as:
    for i in range(0, 10):
        pass
Actually the start index arg could be removed, since its default value is 0.
They should be refactor as:
    for i in range(10):
        pass

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/61287

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/61287
Committed: http://github.com/openstack/oslo-incubator/commit/135dd00ccf3b56f9865435f1ab8653c1f5e03229
Submitter: Jenkins
Branch: master

commit 135dd00ccf3b56f9865435f1ab8653c1f5e03229
Author: Zhang Xin <[e-mail]>
Date: Tue Dec 10 15:43:32 2013 -0800

    Remove start index 0 in range()

    Remove the useless arg ("start index" = 0) in files, since its default
    value is 0, to make code cleaner.

    Fixes bug #1259744

    Change-Id: I02fc3d96cacdbae1be9e9283362bb87518d97a7c