clean up Grin.FromE some, make 'poke' primitive have the right number of args
clean up Grin.FromE some, make 'poke' primitive have the right number of args

darcs-hash:20070305220316-1a7c6-11693022e51d46a723990a379f1c42695d489080

jimcrayne/jhc,jimcrayne/jhc,jimcrayne/jhc,jimcrayne/jhc