update dependencies to use new romulus dependency.
update dependencies to use new romulus dependency.

This uses a version of romulus that's not in a feature
branch.

gabriel-samfira/juju,mjs/juju,macgreagoir/juju,bz2/juju,kat-co/juju,howbazaar/juju,axw/juju,dimitern/juju,AdamIsrael/juju,frankban/juju,gabriel-samfira/juju,mikemccracken/juju,bac/juju,perrito666/juju,dimitern/juju,mjs/juju,bac/juju,waigani/juju,reedobrien/juju,dimitern/juju,waigani/juju,ericsnowcurrently/juju,kat-co/juju,reedobrien/juju,perrito666/juju,perrito666/juju,perrito666/juju,axw/juju,anastasiamac/juju,bac/juju,gabriel-samfira/juju,alesstimec/juju,ericsnowcurrently/juju,alesstimec/juju,howbazaar/juju,reedobrien/juju,axw/juju,kat-co/juju,bac/juju,marcmolla/juju,ericsnowcurrently/juju,alesstimec/juju,mikemccracken/juju,gabriel-samfira/juju,bac/juju,bz2/juju,mjs/juju,reedobrien/juju,anastasiamac/juju,mjs/juju,bz2/juju,marcmolla/juju,mikemccracken/juju,anastasiamac/juju,macgreagoir/juju,bz2/juju,frankban/juju,bz2/juju,howbazaar/juju,mikemccracken/juju,perrito666/juju,mjs/juju,AdamIsrael/juju,howbazaar/juju,macgreagoir/juju,marcmolla/juju,marcmolla/juju,frankban/juju,macgreagoir/juju,waigani/juju,alesstimec/juju,alesstimec/juju,AdamIsrael/juju,frankban/juju,anastasiamac/juju,mikemccracken/juju,howbazaar/juju,mjs/juju,kat-co/juju,marcmolla/juju,reedobrien/juju,axw/juju,gabriel-samfira/juju,kat-co/juju,ericsnowcurrently/juju,mjs/juju,AdamIsrael/juju,waigani/juju,macgreagoir/juju,axw/juju,frankban/juju,dimitern/juju,ericsnowcurrently/juju,anastasiamac/juju,dimitern/juju