org-table: Fix radio tables containing macros
* lisp/org-table.el (orgtbl-to-generic): Export macros as-is, even if
they are undefined.
* testing/lisp/test-org-table.el (test-org-table/to-generic): Add test.
Radio tables are now using a minimal set-up for export. In particular,
no macro is expanded, and no Babel code is executed. If any of these is
needed, use `org-export-string-as' or `org-export-region-as' instead.
Reported-by: Mark Edgington <edgimar@gmail.com>
<http://permalink.gmane.org/gmane.emacs.orgmode/100621>