suggestion: set standard tribe/nation

[Lodenjoe]

I wrote month ago some suggestions in the board of siedler25.org. Spike said I should write them here on github. So I finally decided to make an account.

Probably everybody has a preferred tribe or nation. In the nightly builds you can already set an avatar for your profile but you cannot set a standard tribe. It would save several clicks for each round you start if you can add this feature. Maybe you can combine it with the avatar, so that if you choose Knut for example the tribe is automatically set on Viking in the menu, for Caesar, Octavian, Brutus the Romans etc.