COMMENTS

REMOVE WHEN IT WORKS
WORKING:   modify idml2po to extract special characters.

We are talking about special characters recorded as XML processing
instructions, like for example <?ACE 7?>.
WORKING on  getting processing instructions roundtripped
--------------WORKING:   ADD IDML roundtrip tests
WORKING ON IT:     Now X and G tags work!!!!

This skips unparseable tags.
Properly extract Content tags with childs before the text

This applies to Content tags with any child before the text, like for
example processing instructions, or that don't have any text outside any
of its children. Examples:

<?ACE 7 ?>Some text
<tag>Some text</tag>
ALMOST: idml2po outputs correct PO
idml2po: Avoid having repeated ids on the resulting output