The dtdlink interface is vlan 2 on eth0 and is used for linking two or more devices together.
This will allow for band-to-band repeaters, sector antenna setups, etc.
see BBHN->ticket:28
Quick helper script that checks using the built in functions of
OpenWRT that the firmware file uploaded is indeed a proper
firmware image.
fixes BBHN->Ticket:9
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)