WIP moving the DHT to its own package
WIP dht
Merge branch 'develop' into fd-dht

Conflicts:
	cmd_peer.go
Merge branch 'develop' into fd-dht

Conflicts:
	commands.go
	switch.go
WIP isolated DHT
WIP isolated DHT
WIP isolated DHT
WIP links
WIP links
WIP links
WIP links
WIP links
WIP links
prefix seek
DHT constants
Merge branch 'fd-dht' into develop