update kannel docs to work with new backend style
update kannel docs to work with new backend style

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