- recommend using libyang 2.1.128 but accept 2.0.0 for now.
- update ubuntu building doc to add GRPC section
- update ubuntu reference docker builds to match grpc doc change
Signed-off-by: Christian Hopps <chopps@labn.net>
It's strictly optional, but… the backtraces are really much better.
Specifically, `libunwind` is notably more capable in figuring out
function names compared to glibc/libexecinfo `backtrace_symbols()`.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
