Code review comment for lp://qastaging/~james-page/openstack-charm-testing/next-us-cs

Apologies for the delay in review. I believe everything originally proposed here is covered by the following.

Re: Designate, a separate review has landed:
https://code.launchpad.net/~corey.bryant/openstack-charm-testing/add-new-svcs-to-sparse/+merge/313156

Re: Charmstore urls, I've proposed that here:
https://code.launchpad.net/~1chb1n/openstack-charm-testing/use-cs/+merge/316177

Re: Second cirros image, I picked and landed that here:
http://bazaar.launchpad.net/~ost-maintainers/openstack-charm-testing/trunk/revision/266