[reSIProcate] HashMap for g++ > 3

[Bruce Lowekamp]

I'm still not a native C++ speaker, but shouldn't the line at the
beginning of rutil/HashMap.hxx
#  if ( (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1) )
be
#  if ( (__GNUC__ > 3) || ( (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1) ) )

otherwise we're all just using regular std::map on most modern unices?

Bruce