Resample by pixel dimension options bugged

[theflyingzamboni]

When using the Resample option in the Scale tab (but not Scale option) with any of the (Pixel) Target Scale options, the scale input is still treated as a percentage instead of an absolute pixel dimension for the initial downscale. Scale Min/Max should be absolute pixel values, and should probably be text fields rather than dropdowns, because 25/50/75/100 don't make sense as pixel dimension defaults.