allow robot-identifiers to be set for robots.txt
allow robot-identifiers to be set for robots.txt

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