Ignore temporary and output images.
Stopped tracking .suo file.
Ignore .suo file.
Ignore .user files.
Calculate maximum luminance value using CUDA.
Calculate the minimum luminance too.
Calculate the luminance range and histogram.
Implemented Blelloch scan, but it's not quite working correctly yet.
Code tidy-up.
Fixed bug where second stage of the minimum reduce was calling reduce_max instead of reduce_min.
Renamed (as a copy) a supplied sample file to have a .png extension.