Time-series logging

[codesections]

Neither Flodgatt nor the JavaScript server it's replacing currently have a great story for logging per-websocket message. We can log information and do in certain test scenarios – however, the number of concurrent websocket connections in production quickly makes that sort of logging impractical. Plus, what we would really like to track are averages across many websocket connections, not the numbers for one particular connection.

Fortunately, solving both of these problems is exactly what statsd/etc and and time-series databases are designed for. Post 1.0.0, we should consider adding support for logging in a compatible format.