API.
* print-bgp.c: improve options printing. ugly code exists for
unaligned option parsing (need some fix).
* const poisoning in SMB decoder.
* make dump format back to original. someone may want to add an
option to do ascii printing, but keep the default behavior as is
for scripts used in many places.
* -Wall -Werror clean checks.
Hope I did not break anything. Portability on IPv4-only node needs checking,
I'll do this very soon. (sorry for rather jumbo commit)
XXx what is _FAVOR_BSD?
