Incomplete attempt at making the document build with org-mode 7.9.3f

This makes the required changes to at least make it possible to invoke
the Makefile. As with the org-unstable branch, el-get is used to get
the appropriate version of org-mode.

 However, the makefile stops with the following:
  Wrong type argument: stringp, nil
Attempting to manually export the file yields another error:
  org-babel-execute:emacs-lisp: Invalid read syntax: "#"