update to emonhub log view on the emonpi

I've updated the emonhub log view for the emonpi config module to auto update (1s) with option to toggle on/off. I've also made it look like a linux terminal..

This is available on the v9.0 branch of the config module which works with emoncms v9++:

The steps to update manually are:

cd /var/www/emoncms/Modules/config
git checkout 9.0
git pull