#249550 by Frank: Fixed problem on edit form and calais form where taxonomy saved on one form was deleteing (and not recreating) the taxonomy terms that were only on the other form

fixed issue with calais form_altering before taxonomy module. Thanks to boydjd for having all the problems

Fixed a bug with inserting into the calais term node table, another bug with using the wrong db escape function, and added an error requirement for the ARC2 parser (until we work out a better setup with the RDF module). Thanks to boydjd for finding these