display-stack: some improvements
display-stack: some improvements

dch/factor,slavapestov/factor,nicolas-p/factor,cataska/factor,dharmatech/factor,factor/factor,mcandre/factor,sarvex/factor-lang,nicolas-p/factor,AlexIljin/factor,tgunr/factor,nicolas-p/factor,slavapestov/factor,nicolas-p/factor,littledan/Factor,ehird/factor,sarvex/factor-lang,kingcons/factor,mrjbq7/factor,tgunr/factor,nicolas-p/factor,bpollack/factor,sarvex/factor-lang,slavapestov/factor,factor/factor,mcandre/factor,bjourne/factor,bjourne/factor,jwmerrill/factor,slavapestov/factor,mrjbq7/factor,littledan/Factor,bpollack/factor,mrjbq7/factor,AlexIljin/factor,slavapestov/factor,tgunr/factor,erg/factor,dharmatech/factor,bjourne/factor,littledan/Factor,nicolas-p/factor,kingcons/factor,mrjbq7/factor,littledan/Factor,jwmerrill/factor,ceninan/factor,cataska/factor,ceninan/factor,factor/factor,mcandre/factor,seckar/factor,seckar/factor,erg/factor,jwmerrill/factor,bjourne/factor,Keyholder/factor,ehird/factor,sarvex/factor-lang,tgunr/factor,erg/factor,kingcons/factor,tgunr/factor,AlexIljin/factor,seckar/factor,erg/factor,bpollack/factor,nicolas-p/factor,slavapestov/factor,factor/factor,bpollack/factor,sarvex/factor-lang,dch/factor,dch/factor,ceninan/factor,bpollack/factor,mcandre/factor,bpollack/factor,factor/factor,tgunr/factor,AlexIljin/factor,AlexIljin/factor,slavapestov/factor,mrjbq7/factor,cataska/factor,sarvex/factor-lang,ehird/factor,dharmatech/factor,AlexIljin/factor,dch/factor,bpollack/factor,factor/factor,cataska/factor,Keyholder/factor,dch/factor,kingcons/factor,mcandre/factor,mcandre/factor,mcandre/factor,AlexIljin/factor,bjourne/factor,dch/factor,bjourne/factor,bjourne/factor,mrjbq7/factor,sarvex/factor-lang,erg/factor,erg/factor,ceninan/factor,erg/factor,Keyholder/factor