Add a swift-bench.conf

[Xingchao Yu]

Add swift::bench to configure swift-bench.conf for swift.
This will be used in swift-bench command.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/32270

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/32270
Committed: http://github.com/stackforge/puppet-swift/commit/45cec2d3fbc6910eb9ffc1470317e515e532aead
Submitter: Jenkins
Branch: master

commit 45cec2d3fbc6910eb9ffc1470317e515e532aead
Author: Newptone <email address hidden>
Date: Sun Jun 9 00:00:48 2013 +0800

    Add swift::bench to manage swift-bench.conf

    This patch adds a conf file swift-bench.conf
    for swift performance bench, and add a spec
    test for it.

    Fixed bug 1188968

    Change-Id: Iafb67f116a9403bba96328be7c9c09d21a65a74c