Switch to "nova" exchange.
Switch to "nova" exchange.

Whoops. Was assuming a "monitor" exchange, but it's the "nova" exchange.

Change-Id: Ib0b921bf92724693eaf666762022a5245af8ef11

madkiss/stacktach-sandbox,stackforge/stacktach-sandbox,madkiss/stacktach-sandbox,stackforge/stacktach-sandbox,madkiss/stacktach-sandbox,openstack/stacktach-sandbox,openstack/stacktach-sandbox,openstack/stacktach-sandbox,stackforge/stacktach-sandbox