Commit 132467 by robertDouglass

Commit #132467 by robertDouglass at 17:33
Export DocBook: /modules/export_docbook/export_docbook.module 1.5.2.13 @ DRUPAL-5
New functionality: validate DocBook XML. Users with appropriate permissions can now validate the exported DocBook XML against the DTD. Hint: it doesn't validate at the moment so I've got more work to do\!