yahoo/mojito — pull request #872 by isao (2013-01-03 22:24:32+00:00)
Title: do not colorize test.js output if there is no tty [gh809,bz5964521]

* use process.*.isTTY instead of require('tty').istty()
* tested on node 0.6, 0.8
* n.b. some app and addon Y.log() messages remain tty unaware.