Allow syslog.conf to be locally customized from /storage/.config/syslog.conf

Since I would like to remotely log whatever goes on on my AppleTV devices, I need a way to modify the syslog.conf that is used, or need to provide options to syslogd. This was the easiest pick of the two :)
Merge pull request #1856 from dagwieers/syslog-config

Allow syslog.conf to be locally customized from /storage/.config/syslog.conf