MANATEE-83 heartbeat errors log at warn
MANATEE-83 heartbeat errors log at warn

josephglanville/manatee,AmlingPalantir/manatee,GrimDerp/manatee,joyent/manatee,josephglanville/manatee,AmlingPalantir/manatee,joyent/manatee,GrimDerp/manatee