Use const for none
Use const for none

bogdanteleaga/juju,mhilton/juju,alesstimec/juju,ericsnowcurrently/juju,howbazaar/juju,marcmolla/juju,davecheney/juju,mjs/juju,frankban/juju,frankban/juju,perrito666/juju,tasdomas/juju,makyo/juju,AdamIsrael/juju,axw/juju,ericsnowcurrently/juju,perrito666/juju,mhilton/juju,fwereade/juju,cmars/juju,tsakas/juju,dimitern/juju,howbazaar/juju,bz2/juju,kat-co/juju,frankban/juju,marcmolla/juju,marcoceppi/juju,anastasiamac/juju,makyo/juju,bogdanteleaga/juju,ericsnowcurrently/juju,voidspace/juju,cherylj/juju,cherylj/juju,cloud-green/juju,frankban/juju-tmp,thomnico/juju,mhilton/juju,wwitzel3/juju,howbazaar/juju,axw/juju,wwitzel3/juju,frankban/juju-tmp,jrwren/juju,bz2/juju,AdamIsrael/juju,macgreagoir/juju,macgreagoir/juju,Altoros/juju-vmware,voidspace/juju,gabriel-samfira/juju,dooferlad/juju,sinzui/juju,jrwren/juju,reedobrien/juju,alesstimec/juju,fwereade/juju,mjs/juju,tasdomas/juju,Altoros/juju-cloudsigma,anastasiamac/juju,marcmolla/juju,dimitern/juju,bac/juju,mhilton/juju-juju,waigani/juju,tasdomas/juju,mhilton/juju-juju,axw/juju,tych0/juju,perrito666/juju,mikemccracken/juju,Altoros/juju-vmware,reedobrien/juju,Altoros/juju-vmware,mikemccracken/juju,tsakas/juju,Altoros/juju-cloudsigma,mikemccracken/juju,ericsnowcurrently/juju,howbazaar/juju,ericsnowcurrently/juju,thomnico/juju,cmars/juju,frankban/juju-tmp,axw/juju,gabriel-samfira/juju,dooferlad/juju,cherylj/juju,macgreagoir/juju,frankban/juju,tych0/juju,reedobrien/juju,tsakas/juju,reedobrien/juju,mjs/juju,davecheney/juju,tsakas/juju,bz2/juju,dimitern/juju,frankban/juju-tmp,waigani/juju,anastasiamac/juju,cloud-green/juju,cloud-green/juju,makyo/juju,perrito666/juju,alesstimec/juju,waigani/juju,tych0/juju,alesstimec/juju,thomnico/juju,mhilton/juju-juju,AdamIsrael/juju,cherylj/juju,marcoceppi/juju,dooferlad/juju,waigani/juju,davecheney/juju,fwereade/juju,kat-co/juju,dimitern/juju,Altoros/juju-cloudsigma,mhilton/juju-juju,bac/juju,tych0/juju,gabriel-samfira/juju,Altoros/juju-vmware,bz2/juju,mjs/juju,howbazaar/juju,jrwren/juju,anastasiamac/juju,mhilton/juju,wwitzel3/juju,cmars/juju,mjs/juju,cmars/juju,fwereade/juju,AdamIsrael/juju,makyo/juju,mjs/juju,bogdanteleaga/juju,bac/juju,bac/juju,mikemccracken/juju,macgreagoir/juju,gabriel-samfira/juju,mikemccracken/juju,voidspace/juju,sinzui/juju,thomnico/juju,axw/juju,gabriel-samfira/juju,davecheney/juju,reedobrien/juju,kat-co/juju,sinzui/juju,mjs/juju,kat-co/juju,frankban/juju,marcoceppi/juju,bz2/juju,sinzui/juju,marcoceppi/juju,dooferlad/juju,bogdanteleaga/juju,marcmolla/juju,kat-co/juju,alesstimec/juju,Altoros/juju-cloudsigma,marcmolla/juju,anastasiamac/juju,tasdomas/juju,wwitzel3/juju,perrito666/juju,cloud-green/juju,voidspace/juju,dimitern/juju,macgreagoir/juju,bac/juju,dooferlad/juju