[ESS] max lisp eval depth & ESS

[Stephen Eglen]

Dear Chris,

 > Thanks for rolling this for we lesser mortals Stephen, it installed like
 > a dream and does look good and was easy to reconfigure to point to my
 > location for R.

Vincent Goulet should take the credit for this!

 > I've installed it as I have been using XEmacs and hitting an error
 > message similar or identical to the one Ben reports (don't know why).
 > 
 > Emacs/ESS looks good but there's one ESS toolbar button that appears in
 > XEmacs that I really miss, the "submit a line" one.  ctrl-C, alt-J is a
 > clumsy and slow sequence compared with clicking on that button to work
 > through some code.

I'm not sure why the toolbar button is missing.  I wrote the toolbar
code, so if it is a bug rather than a deliberate change, I can
investigate.  Vincent: do you change the toolbar set up?

Stephen