logging exceptions on add_backend
logging exceptions on add_backend

ken-muturi/rapidsms,ken-muturi/rapidsms,ken-muturi/rapidsms,dimagi/rapidsms,rapidsms/rapidsms-core-dev,peterayeni/rapidsms,caktus/rapidsms,unicefuganda/edtrac,caktus/rapidsms,unicefuganda/edtrac,catalpainternational/rapidsms,peterayeni/rapidsms,eHealthAfrica/rapidsms,dimagi/rapidsms,catalpainternational/rapidsms,eHealthAfrica/rapidsms,caktus/rapidsms,lsgunth/rapidsms,catalpainternational/rapidsms,dimagi/rapidsms-core-dev,unicefuganda/edtrac,peterayeni/rapidsms,ehealthafrica-ci/rapidsms,ehealthafrica-ci/rapidsms,catalpainternational/rapidsms,rapidsms/rapidsms-core-dev,lsgunth/rapidsms,lsgunth/rapidsms,lsgunth/rapidsms,peterayeni/rapidsms,eHealthAfrica/rapidsms,ehealthafrica-ci/rapidsms,dimagi/rapidsms-core-dev