SO MANY CHANGES

not that anything does, but

-- climates tweaked a lot. no more terraintypes completely excluded from
any climate, and hot and cool latitudes less extreme.
-- map options tweaked a bit:
-- "normal" continent shape is now paintedratio 0.5, and default
-- most options now have "random" option
-- rename map options for clarity
-- continent size should be arranged small to large
-- same with continent shape (extra snakey to total blobs), region size,

-- restrict region drawing to designated latitudes, with randomized
tolerance for fewer straight horizontal edges
-- World Age "Random" option works
-- region sizes: the maximum must be no larger than the largest
continent and no smaller than 10, and the minimum must be no larger than
1/2 the largest continent and no smaller than 5.