I have added support for Freemind/Freeplane Mindmap export.  I am
attaching sample files produced with the new exporter.

You are welcome to merge the changes to Org repo.

,---- http://repo.or.cz/w/org-mode/org-kjn.git
| URL	git://repo.or.cz/org-mode/org-kjn.git
| 	http://repo.or.cz/r/org-mode/org-kjn.git
`----

,----
| kjambunathan@debian-6:~/src/org-mode$ git log upstream/master..
| commit 0d49f12f61cf6799f22f1fc4d8cbbef78a67a315
| Author: Jambunathan K <kjambunathan@gmail.com>
| Date:   Sat Mar 2 11:00:46 2013 +0530
| 
|     lisp/ox-freemind.el: Freemind Mindmap Back-End for Org Export Engine
|     
|     * lisp/ox-freemind.el: New file.  Freemind Mindmap Back-End
|     for Org Export Engine.
|     
|     * lisp/ox-html.el (org-html--tags, org-html-format-headline)
|     (org-html--format-toc-headline, org-html-checkbox)
|     (org-html-table-cell, org-html-timestamp)
|     (org-html-verse-block, org-html-special-string-regexps):
|     Replace named HTML entities with their numeric counterparts.
|     This keeps Freemind backend happy.
`----




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