Delete old site images on deploy
As an extension to #147 we should delete the images on the box for the correct branch (aside from the one that's been deployed?) to reduce bloat on the server.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
As an extension to #147 we should delete the images on the box for the correct branch (aside from the one that's been deployed?) to reduce bloat on the server.