Supports more torrent states in Torrent::getTextState.

Needed to implement visible torrent states.

Pic related (no it's not selected, it's just a random color.)

![screenshot from 2014-07-24 01 20 05](https://cloud.githubusercontent.com/assets/8192824/3681799/fa7c7f9c-12bf-11e4-9f6a-3fab24c83701.png)