Cherry-pick commits from master to stable-futures#1296

Merged

Nov 6, 2019

+322-170

Implement Debug for (ed25519|secp256k1)::(Keypair|SecretKey) (libp2p#1285 )

c410-f3r
authored and
tomaka
committed
Fix possible arithmetic overflow in libp2p-kad. (libp2p#1291 )

romanb
authored and
tomaka
committed
protocols/plaintext: Add example on how to upgrade with PlainTextConfig1 (libp2p#1286 )

mxinden
authored and
tomaka
committed
[mdns] - Support for long mDNS names (Bug libp2p#1232 ) (libp2p#1287 )

peat
authored and
tomaka
committed
Bump most dependencies (libp2p#1268 )

Demi-Marie
authored and
tomaka
committed
Remove using void to bypass ICE (libp2p#1295 )
tomaka
committed
Publish 0.13.0 (libp2p#1294 )
tomaka
committed

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