worker/migrationmaster: Support unit resources
worker/migrationmaster: Support unit resources

reedobrien/juju,bac/juju,bac/juju,mikemccracken/juju,frankban/juju,ericsnowcurrently/juju,mikemccracken/juju,mjs/juju,alesstimec/juju,anastasiamac/juju,waigani/juju,mjs/juju,AdamIsrael/juju,anastasiamac/juju,frankban/juju,marcmolla/juju,marcmolla/juju,frankban/juju,mjs/juju,alesstimec/juju,AdamIsrael/juju,AdamIsrael/juju,bac/juju,bac/juju,frankban/juju,reedobrien/juju,anastasiamac/juju,mjs/juju,AdamIsrael/juju,mikemccracken/juju,ericsnowcurrently/juju,waigani/juju,anastasiamac/juju,alesstimec/juju,reedobrien/juju,anastasiamac/juju,mjs/juju,mikemccracken/juju,marcmolla/juju,ericsnowcurrently/juju,reedobrien/juju,waigani/juju,mjs/juju,waigani/juju,mjs/juju,ericsnowcurrently/juju,reedobrien/juju,alesstimec/juju,ericsnowcurrently/juju,marcmolla/juju,mikemccracken/juju,bac/juju,alesstimec/juju,marcmolla/juju,frankban/juju