mage - tarpit assist image generating server

Loads a set of images (and a single font) into memory and serves them via HTTP, modifying their hue, saturation and brightness.
Log (in JSON) is printed to stdout, stderr is reserved for errors - launching mage with `-d` (daemonize) disables all output.

Use this behind a rate-limiting reverse-proxy, as the server is built to provide maximum throughput. Using uncompressed and small images also helps with CPU loads.

Access images at `http://host:{PORT}{PATH}*`, any string in place of the wildcard will be overlaid on the image.
