Module to add jpegtran rotation support to Gallery3
Jpegtran can rotate jpegs losslessly. It doesn't decode the image, rotate the bitmap, and then re-encode it, it is able to rotate the encoded jpeg data.
Version 2 comes with an admin page an an auto-detection of the jpegtran executable.
Discussion thread : http://galleryproject.org/node/107819
v1 by carlstreeter : http://galleryproject.org/node/98524#comment-356535