added log attribute to conf
added log attribute to conf

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