Fix for Ticket #623 - Change error output to indicate issue with notes provided
Merge branch 'develop' of github.com:fedora-infra/bodhi into develop
unpush instead of untag when deleting updates

This way, we can run rube over and over to create & delete the same update in
staging.
Bump to 0.9.10
Merge branch 'release/0.9.10' into develop