Add ability to introduce fake anomalies.

[smayzak]

I would love to be able to have a way to say, generate 10 days worth of data but add spikes for different countries, or add more 500/404 response codes at random intervals etc. Does that make sense?

[spalger]

This is definitely something I'd like to include. While modifying the documents seems simple enough, I haven't been able to wrap my head around how to implement it yet.

At this point, we're thinking anomaly types would be defined in their own file, including one or more is as simple as makelogs --anomaly chinese-spiders --anomaly server-instability. These files would transform the events by defining functions that can: modify the arguments used to generate events, transform each event before storage, or run after event creation is complete.