Release 1.4.14 (20 Oct 2014 -- compared to 1.4.13)

• GIF: Fix to make it able to compile against giflib >= 5.1. #975
• JPEG support for reporting and controlling chroma-subsampling value, via the "jpeg:subsampling" attribute. #978

Release 1.4.13 (12 Sep 2014 -- compared to 1.4.12)

• Now builds against OpenEXR 2.2, including support for the new DWAA and DWAB compression modes.
• OpenEXR: fixed issue where a stringvec of 16 items was mishandled as a matrix.
• Fix fmath.h to move the 'using' statements around properly.
• Fix oiiotool color conversion bug that crashed when the input image was a file with MIP levels.
• TIFF output now gracefully handles negative origins without hitting an assertion.
• Developer details: platform macros moved from sysutil.h to platform.h. (But sysutil.h now includes platform.h, so you shouldn't notice.)
• Developer details: ustring now has comparisons between ustrings versus char* and string_view.