NEW hook afterxlthumbfields

git-svn-id: http://svn.montala.net/svn/resourcespace@6065 c08608d7-6e46-0410-86ca-f2a6f1370df5
FIX for odd images where width and height were not in dimensions_resolution_unit

git-svn-id: http://svn.montala.net/svn/resourcespace@6066 c08608d7-6e46-0410-86ca-f2a6f1370df5