Log Message:
Update to 0.69:
  v0.69 make distclean should now also remove "rej" files.
        Antonio Querubin: update getopt.h . More cleanups using
        new infrastructure.
        rcw: Fixed IPV6 support: When compiled in an IPV6-supporting
        environment, but when the kernel doesn't support IPV6, mtr would
        fail to start.
  v0.68 included some old patches.
        included patch from Antonio Querubin for better IPV6 support
        restructured some more whitespace.
        added mtr.h where "global" things should go. Not finished
        moving things around, but now that the infrastructure is there,
        it should be easy.