OTP request logs are being lost during ELB deployments

[landonreed]

OTP deployments were previously capable of storing the request logs on the long-lived EC2 machines that OTP was running on. With ELB deployments however, this data is getting lost each time a new deployment occurs. We need to determine a good way to upload these logs from the ELB machines, so that they are not lost each time new GTFS is re-deployed. Perhaps just using Cloudwatch would be the best path forward.