Add check for existing localhost in /etc/hosts
Add check for existing localhost in /etc/hosts

Additionaly remove any existing 127.0.1.1, as we create one
from our own settings.

racing-tech/rrp-raspi-installer,beylsp/rpi-installer,yodaaut/raspbian-ua-netinst,racing-tech/rrp-raspi-installer,beylsp/rpi-installer,FooDeas/raspberrypi-ua-netinst