Exposed metrics?

First of all thanks for publishing this, it looks useful and I'd like to give it a try soon.

Is there currently any way of external monitoring, e.g. using Prometheus? It'd be useful for making sure that securitybot runs fine from an ops perspective, but also potentially for further processing of alerts, and metrics derived from alerts.

[lfaraone]

We have hooks for our internal monitoring systems, as well as general service management monitoring. A PR that added sufficiently-generic hooks to the project would be welcome!