No notification sent when extending a volume

[Mathieu Gagné]

When extending a volume, no notification is sent.

This causes problem for systems using notifications for usage tracking.

"resize.start" and "resize.end" should be sent when a volume extension is done.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/44888

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/44888
Committed: http://github.com/openstack/cinder/commit/e0bc432b942bf52b1bf7f83c1cc0eece99a28961
Submitter: Jenkins
Branch: master

commit e0bc432b942bf52b1bf7f83c1cc0eece99a28961
Author: Mathieu Gagné <email address hidden>
Date: Fri Aug 30 22:30:56 2013 -0400

    Send notifications when extending volume

    - Send resize.start when volume extension begins.
    - Send resize.end with new size when volume extension ends.

    Fixes: bug #1219106
    Change-Id: I729da1604668080ec1a5d096df211aa55913dc48