mod_auth_http_async: Update documentation The required async APIs were included in 0.10.0, but at the time of this writing we only consider 0.12.x and later supported. The fallback sync API would have made it work with even earlier versions, but I don't remember specifically and it doesn't matter.

This module writes out a traceback to `traceback.txt` in Prosodys data
directory (see `prosodyctl about`) when the signal `SIGUSR1` is
received. This is useful when debugging seemingly frozen instances in
case it is stuck in Lua code.