Neighbor Discovery finalized for now

Dear routing RIOTers,

with PR #3049 I’m happy to announce that I finally finished my work on vanilla IPv6 neighbor discovery. Please test it extensive. Things still missing is the Redirect Function [2] which I see as optional for now (because it is not really needed for LoWPANs) and the 6LoWPAN optimization [3] (which I will provide as a follow-up PR next around week).

Cheers, Martine

[1] [2] [3]