Pool connected event

[braydonf]

When calling pool.connect() there should be an event other than 'peerready' that is emitted, when all connections are filled (as 'ready' can happen before the peer is added to the _connectedPeers object in tests).

var pool = Pool();
pool.on('connected', function() {
  // send message to peers
});
pool.connect();

[maraoz]

I would call the event 'maxed' or 'full', given most use cases won't care about connecting to ALL peers in a list (thus 'connected' seems misguiding IMO)

[braydonf]

Sounds good! fullyconnected perhaps.