[NTG-context] refcard with context

Hi, I just came across an old layout of a reference card / cheatsheet of mine. See https://gist.github.com/1203210 and http://tex.stackexchange.com/questions/27832/template-for-cheatsheet/27853#2... for an image how it looks like. Do with the code whatever you like (someone can perhaps put it as an example on the wiki?) Patrick