XMP import patch - Best version yet :)

[Bengt Thuree <bengt thuree com>]

Hi guys

I have uploaded a new patch for the XMP importer, which I think is a
good step forward. 
This time I rewrote the logic of XmpTagsMetadata and based it upon the
same logic as in InfoDisplay (which I of course should have done from
the beginning!). A big thank you to Stephane and Cosme who independently
and at the same time found the problem with wrong characters for
international (non-us) imported tags.

The result of this, 
        
        
      * I am getting more tags from my photos 
      * Got one more tag from Dotan's test photo 
      * Got one more tag from Fredric's test photo (missing one, but
        this could be due to an IPTC exeption during import. See other
        mail on the mail list)
      * French, Hebrew, Swedish characters (which were the ones I could
        test) works fine now.

Please try it and let me know how it works, and especially if I 
 - am missing some tags 
 - have some fundamental coding problems 
 - white space problems 
 - missing whatever

I have tested with all supplied test photos, and so far so good. I also
imported 800 or so of my old tagged photos and the result is also very
satisfactory.

Thanks for your time and your assistance.

/Bengt

P.s. 
I also uploaded an icon for the latest imported tags. 
http://bugzilla.gnome.org/attachment.cgi?id=69565&action=view 
Put this one in the icon directory, and do a normal make + make install

Bug link
http://bugzilla.gnome.org/show_bug.cgi?id=342137

Patch link
http://bugzilla.gnome.org/attachment.cgi?id=69656&action=edit