[ESS] remoting ESS/R with tramp

[Rodney Sparapani]

Rodney Sparapani wrote:
> The one exception is that graphics don't pop open, but I can
> live with that.  

FYI...  The graphics issue seems to be related to the fact that
(for me) while using tramp, the DISPLAY variable is unset.
This is not really an ESS issue per se, but it seems like fault
tolerant coding is in order.  However, I'm not really sure how
to tackle it right now.