Fix the alphabetical order in requirement files

[Hua Zhang]

Fix the alphabetical order in requirement files, Bring into correspondence with other project,like:
https://github.com/openstack/requirements/blob/master/requirements.txt

[Hua Zhang (zhhuabj)]

the review link: https://review.openstack.org/#/c/39904/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/39904
Committed: http://github.com/openstack/neutron/commit/9826e0932596e77414b16b3c4ba237d847b30db1
Submitter: Jenkins
Branch: master

commit 9826e0932596e77414b16b3c4ba237d847b30db1
Author: zhhuabj <email address hidden>
Date: Sat Aug 3 00:44:34 2013 +0800

    Fix the alphabetical order in requirement files

    Fix the alphabetical order in requirement files,
    Bring into correspondence with other project,like
    https://github.com/openstack/requirements/blob/ \
    master/requirements.txt

    Fixes bug #1207823

    Change-Id: If70ff2a815343615870e54991aa0d3db3adc5147

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/40145