Revised runLast to no longer consume linear memory
Revised runLast to no longer consume linear memory

danbills/scalaz-stream,zaneli/fs2,lukiano/scalaz-stream,kanterov/scalaz-stream,japgolly/scalaz-stream,djspiewak/scalaz-stream,FranklinChen/scalaz-stream,fthomas/scalaz-stream,drostron/scalaz-stream,arzig/scalaz-stream,jaapterwoerds/scalaz-stream,sellout/scalaz-stream,lowtalker/scalaz-stream,shawjef3/scalaz-stream