update scripted test to use outbound harness, rather than send_messages since they're no longer message objects at that point
update scripted test to use outbound harness, rather than send_messages since they're no longer message objects at that point

catalpainternational/rapidsms,peterayeni/rapidsms,ehealthafrica-ci/rapidsms,peterayeni/rapidsms,peterayeni/rapidsms,caktus/rapidsms,caktus/rapidsms,lsgunth/rapidsms,lsgunth/rapidsms,catalpainternational/rapidsms,eHealthAfrica/rapidsms,ehealthafrica-ci/rapidsms,lsgunth/rapidsms,eHealthAfrica/rapidsms,caktus/rapidsms,peterayeni/rapidsms,lsgunth/rapidsms,catalpainternational/rapidsms,eHealthAfrica/rapidsms,ehealthafrica-ci/rapidsms,catalpainternational/rapidsms