Thu Jun 9 22:23:18 2005 John Ellis <johne@verizon.net>

Thu Jun  9 22:23:18 2005  John Ellis  <johne@verizon.net>

        * exif.[ch]: A lot of code clean up, add generic tiff header parser,
        remove use of packed structures to interpret tiff file format,
        fix possible endless loops in tiff parser with corrupt IFD tables,
        and fix possible overflow in jpeg exif parser.
        * format_canon.[ch]: Add additional makernote values, plus a few
        spelling fixes. Header update.
        * format_fuji.[ch]: Header update.
        * format_nikon.[ch]: Updates to use new tiff parsing utils in exif.c,
        code cleanup. Header update.
        * format_raw.[ch]: Add pathname argument to file descriptor version of
        raw parser to quickly rule out non-raw files based on file extension.
        Add raw header match type to check for tiff "make" field value.
        * image-load.c (image_loader_begin): Add image filename for raw parser.