minimized neighbors and routes and commented out some snmp objects
to decrease memory consumption on avr-zigbit

Signed-off-by: szehl <svenzehl@web.de>
added ravenusbstick code and modified rpl code to get jackdaw ravenusb stick
acting as rpl-border-router, see https://github.com/contiki-os/contiki/wiki/Jackdaw-RNDIS-RPL-border-router


Signed-off-by: szehl <svenzehl@web.de>