backup do not move
detect if we need to edit syslog.conf
onInisght : placeholder for extending insight
run insight imagesnap and onInisght in background
remove comments and create single line
single line makes it easier to grep for existing line in the
/etc/syslog.conf file. if entry exists we can skip appending
to the existing file
restart syslogd after changing configuration file
also some logic to avoid appending to syslog if it already contains
an equivalent entry for what we would have added. attach insight
to the launchctl not sudo launchtl