[Orgmode] better result insertion into Org-mode buffers

[Eric Schulte]

Hi,

In a (fairly) recent thread [1] Graham Smith has brought up the fact
that org-babel does not replace existing results in-place where they
originally existed in an org-mode buffer, but rather deletes any
existing results, and inserts new results immediately afterwards.
Thanks for bringing this up Graham.

In a related note, Dan has mentioned that it would be nice to have an
"append" option for building new results onto existing results.

I've just pushed up a fix (described at [2]) which takes care of the
issue Graham raised, and also adds both "append" and "prepend" keywords
to the :results header argument.

Thanks -- Eric

Footnotes: 
[1]  http://thread.gmane.org/gmane.emacs.orgmode/22837/focus=22860

[2]  
http://eschulte.github.com/babel-dev/DONE-results-deletion-and-insertion.html