GTG, Samba, AWF icons

![awf](https://cloud.githubusercontent.com/assets/470526/2530885/9a492ea0-b52b-11e3-8cac-0133a063f9e8.png)![gtg](https://cloud.githubusercontent.com/assets/470526/2530895/b2de8d48-b52b-11e3-80a5-8d93a8b72a3a.png)![system-config-samba](https://cloud.githubusercontent.com/assets/470526/2530928/fde124cc-b52b-11e3-80cb-a5b8aea65daf.png)

Fixes #470 #463 #447