So far the bind config only impacted the IRC connections.
However, nothing in our doc comment says that this is intentional.
> ### bind
> Set the local IP to bind to for outgoing connections.
This commit fixes the leak and uses it for all outgoing requests
as described by the docstring.
When a URL is prefixed with a TLS scheme, we should make sure
that the remote provides a valid cert, even just for prefetches.
Else MITM of such a site is trivial.
This probably breaks some people with self signed cert, but the
age where that was acceptable is past. We have free CAs now like
Let's Encrypt.
