Global spawn rates

[Thorfinn]

Not thought out very well at present, so feel free to chip in.

I'd like some global settings where you could change the frequency of spawns like wild crops, berries, trees, ruins, etc. Probably one for each type of spawn. (Called a "decoration" in another game I mod; don't know what it is called in this game.) That way, if you add a mod like Wildcraft, you can turn down global settings so it adds the variety without making the game absurdly easy. Add new trees without making forests impassable and scrubland non-existent. Add ruins variety without being able to jump from one to the next. 

Yes, I know each individual mod would have to be updated to apply the multiplier to it's mapgen routine, but then we can ask the mod maker to adhere to best practices.

[Davis]

Yes, great idea. More configurable options are a benefit in my opinion.