Distribute peers more evenly.
Distribute peers more evenly.

We now treat the peers array as a circular list, and overflow to the beginning
if necessary.

mikedld/dht,Librevault/dht,gabrielfalcao/dht,Erkan-Yilmaz/dht,loadletter/dht256,tempbottle/dht-1,jech/dht,cfpp2p/dht,raspopov/dht