[ESS] ESS R function args update

[Stephen Eglen]

> I have spent a little time trying to figure out a way to show the R
> function arguments that ESS provides (in file essd-r-args.el) near
> point, instead of near the mouse cursor. I believe I have a decent
> solution, and would like to share it.
> 
> I have posted a file with some updated functions and documentation at
> the following URL:
> 
> http://www.biostat.wisc.edu/~iverson/r-args-tooltip-at-point.el
> 
> I tested this on Emacs 23.0.60.1 on Ubuntu 8.10, and Emacs 22.3 on Windows XP.
> 
> If it works well, I would love to see it incorporated into a future
> version of ESS.  Is this the appropriate venue and method for
> submitting code for consideration?  If not, can you please point me to
> directions on how that is done?  I did not see any on the ESS web
> page.
> 
> As stated in my .el file, this was my first try using elisp.

Dear Erik, thanks for this -- I will take a look at the code and see how
we can fold it into ESS.

Stephen