Patches for FOP PDF and JPEG

[Thomas DeWeese <Th...@Kodak.com>]

Hi guys,

    These patches have nothing to do with your recent request for
more information about the PDFTranscoder.  The most important
one is the fix for getPixelUnitToMillimeter which currently
causes PDF output to be the wrong size.

    The other patches enable the JPEG code to work correctly
for JPEG files that have lots of long APP markers in them.
I think Photoshop and a few other apps can do this.  It also
defers the creation of the original node until it absolutely
has to thus avoiding decoding the JPEG file and creating
the raster unless needed.

    Let me know if you have any questions on either of these
and I will be looking to Jeremias's questions shortly.