See comment in `msgs.go`. This would normally have required
entirely new transactions, but since we're not in production yet
I'm going to just change the schema and wipe the current FS.
This also adds in an unrelated change regarding more flexible
blacklisting, which will be required for some additional testing
I'm preparing.
Not used right now, but this way we can easily start stuffing more
data in responses.
I also split off some arguments in `NewClient`, unrelated change
(I wanted to pair the MTU with a single client, but I then realized
that it's enough to have it as some global property for now).
The main thing that's added is full RS support, but a lot of things
were rejigged along the way. The tests are still a bit lacking,
and will be augmented in future commits.
Also, produce fully static binaries. This means that `gethostname`
does not work (doesn't work with static glibc unless you build it
with `--enable-static-nss`, which no distro builds glibc with).
