replace flet/labels with org-flet/org-labels

replace flet/labels with org-flet/org-labels

This patch ensure Org-mode will build on all supported versions of
Emacs, after the renaming of the cl macros behind the cl- prefix in the
recent Emacs trunk.

* lisp/org-compat.el (org-flet): Compatibility function now that flet
  has been removed from cl-macs.
  (org-labels): Compatibility function now that labels has been removed
  from cl-macs.
* lisp/ob-R.el (org-compat): Require org-compat.
* lisp/ob-comint.el: Require org-compat.
* lisp/ob-exp.el (org-babel-exp-do-export): Switch to compatibility
  function.
* lisp/ob-gnuplot.el (org-babel-expand-body:gnuplot): Switch to
  compatibility function.
* lisp/ob-lob.el (org-babel-lob-get-info): Switch to compatibility
  function.
  (org-babel-lob-execute): Switch to compatibility function.
* lisp/ob-python.el (org-babel-python-evaluate-session): Switch to
  compatibility function.
* lisp/ob-ref.el (org-babel-ref-index-list): Switch to compatibility
  function.
* lisp/ob-sh.el (org-babel-sh-var-to-string): Switch to compatibility
  function.
* lisp/ob-tangle.el (org-babel-load-file): Switch to compatibility
  function.
  (org-babel-tangle): Switch to compatibility function.
  (org-babel-spec-to-string): Switch to compatibility function.
* lisp/ob.el (org-babel-view-src-block-info): Switch to compatibility
  function.
  (org-babel-execute-src-block): Switch to compatibility function.
  (org-babel-edit-distance): Switch to compatibility function.
  (org-babel-switch-to-session-with-code): Switch to compatibility
  function.
  (org-babel-sha1-hash): Switch to compatibility function.
  (org-babel-balanced-split): Switch to compatibility function.
  (org-babel-join-splits-near-ch): Switch to compatibility function.
  (org-babel-get-rownames): Switch to compatibility function.
  (org-babel-format-result): Switch to compatibility function.
  (org-babel-insert-result): Switch to compatibility function.
  (org-babel-examplize-region): Switch to compatibility function.
  (org-babel-merge-params): Switch to compatibility function.
  (org-babel-noweb-p): Switch to compatibility function.
  (org-babel-expand-noweb-references): Switch to compatibility function.
* lisp/org-bibtex.el (org-bibtex-headline): Switch to compatibility
  function.
  (org-bibtex-fleshout): Switch to compatibility function.
  (org-bibtex-read): Switch to compatibility function.
  (org-bibtex-write): Switch to compatibility function.
* lisp/org-exp-blocks.el (org-export-blocks-preprocess): Switch to
  compatibility function.
* lisp/org-exp.el (org-export-format-source-code-or-example): Switch to
  compatibility function.
* lisp/org-macs.el (org-called-interactively-p): Indentation fix.
* lisp/org-mouse.el (org-mouse-timestamp-today): Switch to compatibility
  function.
  (org-mouse-set-priority): Switch to compatibility function.
  (org-mouse-popup-global-menu): Switch to compatibility function.
  (org-mouse-context-menu): Switch to compatibility function.
* lisp/org-plot.el (org-plot/gnuplot-to-grid-data): Switch to
  compatibility function.
  (org-plot/gnuplot-script): Switch to compatibility function.
* lisp/org.el (org-entry-get): Switch to compatibility function.
  (org-fill-paragraph): Switch to compatibility function.
  (org-auto-fill-function): Switch to compatibility function.