mod_posix: Daemonize later
Daemonizing later means we can use that as a "successful startup"
signal and problems can be reported via exit code.
For full information on our dependencies, version requirements, and
where to find them, see https://prosody.im/doc/depends
If you have luarocks available on your platform, install the following:
- luaexpat
- luasocket
- luafilesystem
- luasec