Dependency requests missing from requirements.txt

[Navneet]

NetApp eseries driver uses package "requests" for server communications. While its present in OpenStack/requirements as global requirements but is missing from cinder requirements. It needs to be added as a dependency.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/79911

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/79911
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=a5c5e6871d1d1a3c25627835208fa800eb125934
Submitter: Jenkins
Branch: master

commit a5c5e6871d1d1a3c25627835208fa800eb125934
Author: Navneet Singh <email address hidden>
Date: Mon Feb 17 18:35:50 2014 +0530

    Fix missing package dependency for requests

    The package named requests is used by NetApp eseries
    driver for doing client/server communications. This entry
    is absent in requirements.txt. The patch fixes it.

    Closes-bug: #1291325

    Change-Id: I044ecce433d3d9e0409762a3e4551e1ce17f607d