Synchronise achievement fixes

Hi Rok,

It feels really good that it is now kind of official :) Of the achievement fixes, one is applicable to the Dutch version, here a pull request for it.

Could you please check the following:
* Set language to Dutch and restart game. It will also work with Italian.
* In the main menu, click "Nieuw spel".
* In the left bar "Faction" is still in English while  "Faction" in GUI.xml is correctly translated into "Fractie".

I suspect this was noticed before because both English and German use the same word.

Daniël