* Rewrite the libp2p networking
* Fix erroneous replacement during rebase
* Update libp2p
* Update libp2p
* Remove the logic error about useless substreams
* Use the new NodeHandler system of libp2p
* Commit the Cargo.lock
* Upgrade yamux
* Forward port latest changes
* Fix compilation issues
* Implement the external URL
* Update to latest networking fixes
* Forward port rest of v0.2
* Fix reserved peers being dropped when we're full