s/TaoDomain/Domain/g
s/TaoGuard/Guard/g
s/tao.Host()/tao.Parent()/g s/tao.HostAvailable()/tao.Hosted()/g
s/TaoHost/Host/g
s/TaoRootHost/RootHost/g s/TaoStackedHost/StackedHost/g
update unit tests; all unit tests pass