rename "Map Type" to "Scope" ("Map Type" is already taken by civ, it's the script)

-- revert to relative continent sizes
-- use Map.Rand instead of math.random, which should fix multiplayer sync issues
-- add 1 Billion Years as a World Age option
-- adjust World Age config
-- remove one Continent Shape option
-- replace Latitude-Sensitive Climate option with Map Type option
-- add option to create non-wrapping map ("realm")
-- nearly copy civ 5's native coast generator, to prevent wrapping coast tiles on nonwrapping maps
-- increase lake chance when pangaea is active (because of ismuthchance)
-- randomize (and reduce) polar ice slightly
-- add "realistic realm" map option with randomized latitude range

regions of one terrain type can have patches of a wider variety of terrains. a few small optimizations.

Added Mountain Clumpiness option, the default of which makes mountains more evenly distributed around the map.

Mountainousness has been reduced to about 1/3 of what it once was, to approximate native Continents script amount of mountains.

- continent size is now absolute, no longer dependent upon map area & ocean size
- control over amount of islands as a ratio of the land area
- islands now seperate from pangaea landmass
- pangaea shape much improved (less patchy, fewer tiny isthmuses)

- randomized latitudes if random climate
- region sizes lessened slightly and have slightly less variability
- climates tweaked a lot. no more terrain types completely excluded from any climate, and hot and cool latitudes less extreme.
- map options rearranged and renamed (Mountains is now World Age, Water Depth is now Coast Width)
- most map options have a Random option
- latitude-sensitive climate more strictly delineates where terrain can and cannot be
- region sizes: the maximum is no larger than the largest continent and no smaller than 10 tiles, and the minimum is no larger than 1/2 the largest continent and no smaller than 5 tiles
- maps of almost entirely one terrain type should no longer be possible

- mountain ranges larger & fewer
- continent shapes somewhat less predictable

- jungle now only on plains (but near grassland), as it should be

- forgot to rename map type from "Fantasy testing" to "Fantasy" in the last version. fixed, i think.