It yields these errors on startup

  *Messages*
  Loading /home/eschulte/.emacs.d/src/org-mode/lisp/org.el (source)...
  Package assoc is obsolete!
  Loading /home/eschulte/.emacs.d/elpa/org-20121231/org-loaddefs.el (source)...done
  Problems while trying to load feature `org-jsinfo'
  eval-buffer: Symbol's function definition is void: org-define-obsolete-function-alias

It looks like removing items from `features' is dangerous.

If this problem is specific to my situation I'm happy to ignore it until
I can update my elpa version of Org-mode to a newer one.  Alternately I
could just remove my ELPA install of Org-mode, as it was only installed
to answer questions on the mailing list, and I don't think side-by-side
ELPA and source Org-modes are necessarily something that needs to be
supported.

Thanks,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte