increase the randomness of the fractal mode; unpredictable water location, but may create smaller seas

finally fixed new map bug! balance water spawn location and size

improved height generation to avoid excessively large swaths of similar terrain

9/18 compat

wrapping up fractal improvements that create snakier continents and more unpredictable out of bounds

for fractal mode, mini islands can have trees and improvements; "Taiwan" is more likely to be land

enhanced diversity and shape of fractal mode; drastic lowering of central bias

increased nonmountain barbs; fewer mountains

geometry, minor cities are now next to most extra barb camps

like 5.0, but works -.-