Add allows_delete_by permission method to Badge model
Add allows_delete_by permission method to Badge model

deepankverma/badges.mozilla.org,mozilla/badges.mozilla.org,mozilla/badges.mozilla.org,mozilla/badges.mozilla.org,deepankverma/badges.mozilla.org,deepankverma/badges.mozilla.org,mozilla/badges.mozilla.org,deepankverma/badges.mozilla.org