TMI-TIFF: Replaced JPEG test case with more light-weight file.
TMI-TIFF: Code clean-up.
TMI-TIFF: Now passes YCbCrPositioning to upsampler. Replaced magic value with constant.
TMI-TIFF: Added warning for unknown YCbCrPositioning values.
TMI-XXXX: Fixed a typo in the JPEG docs.
TMI-TIFF: Simplified progress update.