Rework options; add out-of-gamut option.
Rework options; add out-of-gamut option.

Options are now managed by a window.options object.
There's now a checkbox to render (sRGB-)out-of-gamut colors.

Also, add semicolons after all anonymous functions, for consistency.

pteromys/munsell,pteromys/munsell,pteromys/munsell