Major changes:
* Replace runtime endianess check with the compile time one.
* Added support for the new predictor type (floating point predictor),
defined at the TIFF Technical Note 3.
* Added Support for custom tags, passed by value. Added support for
all DNG tags.
- Removed LZW Compression to comply with Unisys patent extortion
- Changed default compression in tools to TIFF_PACKBITS, and changed usage
descriptions in tools to reflect removal of LZW compression
- Added Pixar tag support
2) change tiff/Makefile to spit out message saying to use tiff34
remove all tiff files, patches, and pkg data; they're no longer needed
3) install tiff34 as libtiff, tiff.h, and tiffio.h; add symbolic links
so the old names of libtiff34, tiff34.h, and tiffio34.h still work.
4) Change ImageMagick to use -ltiff, not -ltiff34; remove the patch
files and directory as they are no longer needed.
5) Change gimp to use -ltiff, not -ltiff34; remove the patch files and
directory as they are no longer needed.
NOTE: with these changes ImageMagick and gimp require the updated tiff34
port.
