[r=dave-cheney],[bug=1321492] provider/openstack: fix lp 1321492
[r=dave-cheney],[bug=1321492] provider/openstack: fix lp 1321492

Replace a bunch of calls to DeepEqual which should be doing set comparison.
tsakas/juju,macgreagoir/juju,cloud-green/juju,axw/juju,ericsnowcurrently/juju,alesstimec/juju,frankban/juju-tmp,sinzui/juju,sinzui/juju,mhilton/juju-juju,axw/juju,Altoros/juju-vmware,macgreagoir/juju,cloud-green/juju,alesstimec/juju,marcoceppi/juju,makyo/juju,sinzui/juju,dooferlad/juju,tsakas/juju,voidspace/juju,marcoceppi/juju,mattyw/juju,mhilton/juju-juju,bz2/juju,axw/juju,cherylj/juju,gabriel-samfira/juju,waigani/juju,bz2/juju,frankban/juju,anastasiamac/juju,marcmolla/juju,voidspace/juju,mjs/juju,cmars/juju,mhilton/juju-juju,bogdanteleaga/juju,tsakas/juju,thomnico/juju,tych0/juju,frankban/juju,alesstimec/juju,macgreagoir/juju,fwereade/juju,howbazaar/juju,mattyw/juju,cherylj/juju,Altoros/juju-cloudsigma,fwereade/juju,dooferlad/juju,sinzui/juju,howbazaar/juju,ericsnowcurrently/juju,perrito666/juju,marcmolla/juju,tasdomas/juju,wwitzel3/juju,rogpeppe/juju,anastasiamac/juju,cmars/juju,marcoceppi/juju,tasdomas/juju,reedobrien/juju,cloud-green/juju,bz2/juju,anastasiamac/juju,kat-co/juju,frankban/juju-tmp,kat-co/juju,alesstimec/juju,wwitzel3/juju,tasdomas/juju,tych0/juju,dooferlad/juju,axw/juju,AdamIsrael/juju,frankban/juju,dimitern/juju,cherylj/juju,dimitern/juju,mhilton/juju,frankban/juju,thomnico/juju,bac/juju,tsakas/juju,howbazaar/juju,Altoros/juju-vmware,mhilton/juju,bac/juju,mjs/juju,fwereade/juju,jrwren/juju,mjs/juju,reedobrien/juju,kat-co/juju,mhilton/juju-juju,alesstimec/juju,davecheney/juju,AdamIsrael/juju,mikemccracken/juju,dimitern/juju,mjs/juju,frobware/juju,bogdanteleaga/juju,thomnico/juju,bz2/juju,waigani/juju,anastasiamac/juju,marcoceppi/juju,dooferlad/juju,perrito666/juju,anastasiamac/juju,cherylj/juju,rogpeppe/juju,ericsnowcurrently/juju,mhilton/juju,gabriel-samfira/juju,Altoros/juju-vmware,marcmolla/juju,bac/juju,mattyw/juju,jrwren/juju,frobware/juju,AdamIsrael/juju,voidspace/juju,gabriel-samfira/juju,bac/juju,voidspace/juju,dimitern/juju,mikemccracken/juju,gabriel-samfira/juju,frankban/juju-tmp,makyo/juju,mikemccracken/juju,waigani/juju,thomnico/juju,mjs/juju,marcmolla/juju,fwereade/juju,ericsnowcurrently/juju,mjs/juju,reedobrien/juju,bz2/juju,reedobrien/juju,kat-co/juju,frobware/juju,mhilton/juju,tych0/juju,macgreagoir/juju,frankban/juju,perrito666/juju,cmars/juju,perrito666/juju,howbazaar/juju,makyo/juju,Altoros/juju-cloudsigma,cmars/juju,reedobrien/juju,wwitzel3/juju,cloud-green/juju,marcmolla/juju,bogdanteleaga/juju,davecheney/juju,Altoros/juju-cloudsigma,kat-co/juju,dooferlad/juju,bac/juju,Altoros/juju-cloudsigma,ericsnowcurrently/juju,frankban/juju-tmp,macgreagoir/juju,axw/juju,tasdomas/juju,waigani/juju,gabriel-samfira/juju,rogpeppe/juju,mjs/juju,jrwren/juju,AdamIsrael/juju,makyo/juju,dimitern/juju,Altoros/juju-vmware,mikemccracken/juju,howbazaar/juju,davecheney/juju,davecheney/juju,tych0/juju,bogdanteleaga/juju,mattyw/juju,perrito666/juju,mikemccracken/juju,wwitzel3/juju