Changed the way a user is created...
Changed the way a user is created...

adducer is used instead of useradd, the user is not added to any
additional groups (except for optionally sudo), adduser takes care of
that

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