!!Errors addressed so far (may 2011):

* dårlege originalfiler - gjev ugyldig xml
** desse blir fanga opp i dag
* kodefeil - desse gjev gyldig xml, men meiningslause bokstavar
** utf-som-macroman
** utf-som-latin1
** utf-som-html-hex
** utf-som-html-entitet
* skannefeil/ocr-feil - desse gjev meiningsfulle bokstavar, men meiningslaus tekst
** đ-som ó, osv.
* bad sentence-delimitation: one real sentence is one fragment in one language,
  3 fragments in the other -> alignment goes bunk
* files {{freecorpus/converted/sme/admin/others/}} 
** {{STM200420050011000SE_PDFS.pdf.xml}} 
  {{STM200420050044000SE_PDFS.pdf.xml}}
  have encoding errors that đ is represented as   and the document is full of
   's; thus these files should be deleted
** file {{OTP200620070025000SE_PDFS.pdf.xml}}
  has paragraphs with content '--------' so it should be deleted.
** file {{STM200320040010000SE_PDFA.pdf.xml}}
  has so many errors, it should be rescanned
** {{uito-ohpenplana.txt.xml}}
  the original file is corrupted