from Richard Nolde.  In particular, support for rotating the image
by 90, 180, 270, and 'auto' has been added.  Still waiting for
documentation patch to man/tiff2ps.1.

* tools/tiffcrop.c: Incorporated significant functionality update
from Richard Nolde.

uint64 so that bundled utilities (like tiffcrop) can use it when
necessary.

the library does not require a 64-bit type, but tiffcrop needs it.

for TIFFError(), TIFFErrorExt(), TIFFWarning(), and
TIFFWarningExt() in order to reveal bugs.  Cleaned up resulting
warnings throughout for 32 bit build only.

output file names.

construction.

signed/unsigned mismatch.

http://bugzilla.maptools.org/show_bug.cgi?id=1929

I don't exactly remember why this was important.
---
Fix unchecked malloc result.

directory just because we have BEENWRITING at some point in the past.  This
was causing odd junk to be written out in a tile of data when a single tile
had an interleaving of reading and writing with reading last.  (highlighted
by gdal autotest/gcore/tif_write.py test 7.

  http://trac.osgeo.org/gdal/ticket/1965
Improvements so that predictor based encoding and decoding works in
read-write update mode properly.
  http://trac.osgeo.org/gdal/ticket/1948