[SPRITE] Minor Energy Gun Sprite Consistency Change

Changes the Energy Gun's Disable sprites to use the same colour style as the Advance Taser uses when the gun is set to Disable.

In game image below.

![screenshot 2014-12-31 01 41 04](https://cloud.githubusercontent.com/assets/6595389/5581038/676f7d10-908e-11e4-9c4a-4114a42ce96c.png)