[ESS] Automatic jump to error line in the source code.

[Stephen Eglen]

Dear Chrisophe, thanks for the advantages you suggest for protocols, I
will think on this.

> I don't want to get all evangelistic about this -- I'm painfully aware
> that at least at the moment I'm a newcomer to this community.  Stop me
> if I become a distraction.

Far from it - please keep up your good work!  Getting things like
debugging working would be great, and perhaps be an incentive to switch.

best wishes, 
Stephen