don't trace Peer's and Peer::LoopData's operator<<

Change-Id: Idf9e016eab61607080b5b91f5c294619ad544d37
Signed-off-by: Alessandro Salvatori <sandr8@gmail.com>
re-declare all comms tests as stable

Change-Id: Ie5980f4e571d9b15218b5e2fd31f1fe1e0de3541
Signed-off-by: Alessandro Salvatori <sandr8@gmail.com>