Major update - symmetric encryption, UDP hole punching, code cleanup.

Reviewed-on: #1

hub/api/db/sanitize-validate.go

@@ -51,7 +51,7 @@ func Peer_Sanitize(p *Peer) {
 		}
 	}
 	if p.Port == 0 {
-		p.Port = 515
+		p.Port = 456
 	}
 }