Fix bulk floating ip ext to show uuid and fixed_ip

The bulk floating ip extension was not showing the instance_uuid
or the fixed_ip properly due to a missing join and an ommision
when the extension was first created. This updates the extension
to display all of the relevant data.

Change-Id: I81c2c742a7eed134b5452c19da0cc55811c009ab
Closes-Bug: #1360426
Merge "Fix bulk floating ip ext to show uuid and fixed_ip"