Adds colored department radio channels

* Added colored department radio channels, see below for colors.
* Removed the tcomms server for the non-existant mining channel.

![radiocolors](https://f.cloud.github.com/assets/1355638/882342/feb82134-f960-11e2-99f6-bcdfff487573.png)
![ertradio](https://f.cloud.github.com/assets/1355638/882343/0394f39e-f961-11e2-832d-e6f888fddde6.png)