Taser sprites

I noticed this server had some of the archaic taser sprites and might want these ones that are used on NT since you have some newer egun sprites as well. Here you go!

![tasers](https://cloud.githubusercontent.com/assets/7247232/3280108/ff23a4ac-f443-11e3-9272-72c4ab9d324f.png)

(I left the older taser sprites alone, just renamed them taserold etc.)