clean up pop-front, add dlist1, add push-all-front and push-all-back
clean up pop-front, add dlist1, add push-all-front and push-all-back

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