[Libreoffice] [PATCH] De-Java-ise flat XML export

[Peter Jentsch]

Hi Jan, Hi Gioele, 

I'm sending two more patches which aim to replace the xslt based flat
xml filter implementation by a different one directly interfacing with
the xml filter framework. It's actually simply copied from the ODK
example and only slightly modified. It currently still lacks support for
advanced pretty printing (like with split-long-lines.xsl), I will try to
add that next. 

Git still makes me feel awkward %]

I hope I got the formatting better than last time, but you're kindly
invited to nitpick where necessary.

Thanks for reviewing this. 

Peter