Merge pull request #60 from libp2p/chore/update

update deps

go.mod

 module github.com/libp2p/go-tcp-transport
 
 require (
-	github.com/ipfs/go-log v0.0.1
-	github.com/libp2p/go-libp2p-core v0.2.2
-	github.com/libp2p/go-libp2p-mplex v0.2.1
+	github.com/ipfs/go-log v1.0.3
+	github.com/libp2p/go-libp2p-core v0.5.1
+	github.com/libp2p/go-libp2p-mplex v0.2.3
 	github.com/libp2p/go-libp2p-testing v0.1.1
-	github.com/libp2p/go-libp2p-transport-upgrader v0.1.1
+	github.com/libp2p/go-libp2p-transport-upgrader v0.2.0
 	github.com/libp2p/go-reuseport v0.0.1
-	github.com/libp2p/go-reuseport-transport v0.0.2
+	github.com/libp2p/go-reuseport-transport v0.0.3
 	github.com/multiformats/go-multiaddr v0.2.1
 	github.com/multiformats/go-multiaddr-fmt v0.1.0
-	github.com/multiformats/go-multiaddr-net v0.1.3
+	github.com/multiformats/go-multiaddr-net v0.1.4
 )
 
 go 1.12