Release 2.0.12 (1 Nov, 2019) -- compared to 2.0.11
- Fix compiler warnings on some platforms. #2375
- Work around bug in OpenEXR, where dwaa/dwab compression can crash when
used on 1-channel tiled images with a tile size < 16. This can crop up for
MIP-maps (high levels where rez < 16), so we detect this case and switch
automatically to "zip" compression. #2378