Used instead of pLocalPalette when attempting to determine objective truths, such as "the colours of this gif without color profile modification" and "what indicies should this colormap remap to".
Also, made f_wipe.c's paldiv only get calculated once.
Basically in preperation of supporting colourblindness modes I implemented the following link when loading palettes.
http://http.developer.nvidia.com/GPUGems2/gpugems2_chapter24.html
This basically means I can do whatever the hell I want to the colour profile of incoming paletties, and nobody can stop me. Muahahahaha etc.
Also, I added a saturation feature to show off its full potential, converted gamma from a table to a factor of the calculation, tweaked some menus and made the default value of cvars show up on sliders. Because that's how I roll.
