GitLab

switch to libp2p's go-nat fork

remove all uses of multiaddrs

NATs only care about TCP/UDP and ports. Using multiaddrs here made this library
really hard to work with correctly.

Furthermore, this library doesn't _actually_ support specifying the internal IP
address. However, we'd still _act_ like the internal IP address mattered. This
caused all sorts of mismatches.

add gomod support // tag v0.0.1.

gx publish 0.8.12

gx publish 0.8.10

only map *usable* addresses

Otherwise, we'll try to port-map localhost.

gx import multiaddr

gx publish 0.0.8

Update Travis CI to use standard test script and go 1.9.x.

This also switches from goveralls to codecov.