Added country flags.

![screenshot](https://cloud.githubusercontent.com/assets/2142305/4011580/b2221ac4-2a05-11e4-9db0-e24644d6f5a8.png)

On a side note, the executable size has grown to ~450KB when I added the flag icons, and to 1MB when I added the GeoIP.dat file as a resource.

Sorry for the commit mess (again).