Fix bug when storing IDs of peers in the blacklist.
Signed-off-by: Stefano Traverso <email@example.com>
Modified get_rtt to make it return the MIN measure.
Added basic structures and code to put peers blacklist.
Idea is:1) when peerA has to remove peerB from its neighborood, it canput peerB in its local black list if peerB has not been a "good" neighbor.
2) If peerB got blacklisted from peerA, peerA will not insert peerB in its neighborood...