Document some constants and eliminate the global vars.
Document some constants and eliminate the global vars.

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