Change tox bootstrap user in amnesic

src/freedombone-image-mesh

 	if [ -f $MESH_AMNESIC ]; then
 		# change to the amnesic mount
 		sed -i 's|/var/lib/tox-bootstrapd|/media/tox-bootstrapd|g' /etc/tox-bootstrapd.conf
+		systemctl stop tox-bootstrapd.service
+		sed -i 's|WorkingDirectory=.*|WorkingDirectory=/media/tox-bootstrapd|g' /etc/systemd/system/tox-bootstrapd.service
+		systemctl daemon-reload
+		userdel -r tox-bootstrapd
+		useradd --home-dir /media/tox-bootstrapd --create-home --system --shell /sbin/nologin --comment "Account to run Tox's DHT bootstrap daemon" --user-group tox-bootstrapd
+		chmod 700 /media/tox-bootstrapd
 	fi
 
 	echo $'Enabling toxcore daemon' >> $INSTALL_LOG