update to es6
update to es6

joshmh/lamassu-server,lamassu/lamassu-server,naconner/lamassu-server,lamassu/lamassu-server,joshmh/lamassu-server,naconner/lamassu-server,joshmh/lamassu-server,lamassu/lamassu-server,naconner/lamassu-server,joshmh/lamassu-server