#198 [cfa8f656] mantiuk '08 tonemapping settings file

[Beep6581]

1- Tweak the Mantiuk '08 sliders to anything.
2- Save a tonemapping settings file.
3- Tweak the sliders again or click "default" just to change them from the values you saved.
4- Load that settings file.
Bug: None of the sliders are set to what you loaded.