Comment 5 for bug 1371826

Gonna make the call here as I think Jim pointed out the distinction. We want to make sure to be as non-destructive as possible in the library. EXIF rotate makes the most sense inside of Photos.

However, since we can't predict external apps and whether or not they will respect this data, I think it makes sense that *export* should apply all changes (including rotate and flip) to the exported file.