add a /brokers endpoint to return all of the default brokers for service group support
add a /brokers endpoint to return all of the default brokers for service group support

circonus-labs/circonus-one-step-install,circonus-labs/circonus-one-step-install,maier/circonus-one-step-install,maier/circonus-one-step-install,maier/circonus-one-step-install,circonus-labs/circonus-one-step-install