[ESS] Pause between startup commands

[Brahm, David]

When I start up ESS 5.3.1, I get:

> if(!exists("baseenv", mode="function")) baseenv <- function() NULL
options(STERM='iESS', editor='emacsclient')
> > 

A little ugly, as the two commands run together.  A brief pause
between commands would fix this up:

> if(!exists("baseenv", mode="function")) baseenv <- function() NULL
> options(STERM='iESS', editor='emacsclient')
> 

That pause can be achieved by adding
    (sleep-for 0.1)
after line 142 in essd-r.el, i.e. after the "baseenv" text and
before the (if inferior-ess-language-start ...) line.

-- David Brahm (brahm at alum.mit.edu)