Why choice between colors or date, but not both

[darky]

https://github.com/visionmedia/debug/blob/22f993216dcdcee07eb0601ea71a917e4925a30a/src/node.js#L86-L95

I want to use colors and dates simultaneously, but can't. Why?

[Qix-]

Closing in favor of #582. Please move discussion there.