[NTG-context] Wiki page on color

[Aditya Mahajan]

Hi,

I am doing a major overhaul of the wiki page on colors. The current 
page[1] had become tangled up with time and I think that it is better to 
reorganize the information.

Since this is a major change, rather than simply editing the wiki page, I 
have created a new page[2].

Please take a look at both pages:

[1]: http://wiki.contextgarden.net/Color
[2]: http://wiki.contextgarden.net/Color/sandbox

If you think that there is information on the original page that needs 
to go to the new page, move it there. After a few days, I'll move page [2] 
to page [1].

Aditya