Got rid of historic hncp-implementation-notes.txt. It was somewhat out of date by now, and rm was easier than updating.
hncp: Implemented more efficient (for large number of locally published tlvs at any rate) hncp_find_tlv.
test_hncp_net: Made random monkey case more paranoid about correctness of connectivity in both directions.
net_sim: Made it deal with the shorter hash length of HNCP, and also made it an error if there is unicast MAC address conflict on send during tests. (They indicate something is broken somewhere.)