May I please ask for some feedback to Org users who installed Org
from ELPA: if you apply the diff, does example-hline-refs.org work
properly (i.e. formula recalculation updates only cell @2$2)?
Does it work good also for other values like @II-1$2, @I+1$1 etc.?

  Thanks in advance for any feedback you may provide, kindest regards.

  Andrea


  PS1: 1xN ranges like "@I", "@I+1" aren't managed by the proposed
tiny change. Another (similar) tiny change would be needed in order
to support them.

  PS2: if you want to test the diff without messing your Org
installation, you might simply...

 - open org-table.el
 - copy&paste the additional code into function org-table-expand-lhs-ranges
 - reevaluate the (defun org-table-expand-lhs-ranges ...) statement with
   C-x C-e
 - kill the org-table.el buffer without saving the file
 - play again with example-hline-refs.org

  PS3: I believe the change will not work for Org versions
installed from git master, because at some point in org table
there's a code check forbidding hline refs:

(if (string-match "^@-?I+" (car x))
    (user-error "Can't assign to hline relative reference"))

  Motivations for that code check were discussed here:
http://thread.gmane.org/gmane.emacs.orgmode/71562 ,
I hope the proposed diff could make the check unnecessary
or less strict in the future.