files/etc/hosts was deleted in b948d97/bbhn_ar71xx
Recovered and modified IP address for localnode.
dnsmasq needs /etc/hosts to be pre-populated with "localnode"
otherwise users have to type the ip address for first log in.
We populate this file via node-setup on mode changes.
fixes BBHN->ticket:10
Includes removing files that are provided by packages instead
of being embedded as binaries.
Changes made for UBNT hardware AND for newer base openwrt (Backfire)