#46 Toggle font antialiasing

[Chris BeHanna]

I'd like to be able to toggle font antialiasing on and
off. I work with text all day, and with an appropriate
font selection, turning *off* font antialiasing to get
razor-sharp text (e.g. give Terminal a try with white
text on a black background, Courier 14.0pt, with anti-
aliasing *off*, on an LCD display), is actually easier on
the eyes.

Thanks.