This patch implements a new notification strategy that sends
notifications to a message queue via Qpid.
Change-Id: Ie2640139dcf735e428af63e9e87b3667a2b22eb5
An image.send notification is to be sent to the notifier every time an image is
transmitted from glance. This can be used to track things such as bandwidth
usage.
Addresses bug 914440
Change-Id: If8b6504c4250fa6444d17d611de43d9704ca9aae