Correct anatomical terms (iris color)

[asafum]

Possibly trivial, but in character creation under Facial Decorations, Eye tab, Pupil color, this should be named Iris color. The pupil being the center most dark section of the eye, the colored portion after that is called the iris. Again trivial at best, but if any future patches have any localization/text fixes this is one that could be addressed as well. In any event, thanks for an awesome game, keep up the great work! :D