allow configuring log level
allow configuring log level

naconner/lamassu-server,evan82/lamassu-server,joshmh/lamassu-server,naconner/lamassu-server,joshmh/lamassu-server,lamassu/lamassu-server,lamassu/lamassu-server,joshmh/lamassu-server,naconner/lamassu-server,lamassu/lamassu-server,joshmh/lamassu-server