clarify behavior of seekable/nonseekable limited streams
clarify behavior of seekable/nonseekable limited streams

mcandre/factor,erg/factor,kingcons/factor,erg/factor,kingcons/factor,cataska/factor,littledan/Factor,littledan/Factor,mcandre/factor,mcandre/factor,cataska/factor,erg/factor,ceninan/factor,ceninan/factor,erg/factor,mcandre/factor,littledan/Factor,mcandre/factor,ceninan/factor,erg/factor,cataska/factor,erg/factor,cataska/factor,littledan/Factor,erg/factor,ceninan/factor,mcandre/factor,kingcons/factor,mcandre/factor,kingcons/factor