add colors in browsers

[balupton]

https://github.com/bevry/caterpillar-browser/blob/f200b0ac2398e3440cf61042c71316d403f8f356/source/index.js makes it possible for caterpillar, perhaps that can become a generic module that this then uses

[balupton]

perhaps making joe streams/pipe based makes more sense, then I can just pipe directly to caterpillar-browser, so perhaps renaming caterpillar-browser to something else makes even more sense

[balupton]

Moved to bevry/kava#24