Several minor RIP changes (Pavel, please check as usually):
o Use FIB_ITERATE_INIT instead of calling the function fit_init()
which is explictly marked as private in route.h.
o When printing trace messages, don't spit out protocol name twice.
o Some messages are a bit more verbose.
o Added a bunch of FIXME's.
o When running in broadcast mode, don't forget to bind the local
end of the socket to the same broadcast address, so that we don't
get the broadcasts looped back via different interface. I'm just
going to look up the same problem for multicasts.