All versions of Galimulator

* Natives added to certain systems, will allow empires to constructs their ships * Vassalization of empires * Highlighting of ship paths when selecting ships * Blacklist empire specials * New galaxy types: Solar system and Spaghetti * Sped up pathfinding a lot, so (especially bigger) galaxies should lag less when there are lots of ships * Railgun weapon added * Lots of bugs fixed and added