1. Major code refactoring for use of a single fractal for more natural and better balanced terrain banding.
2. Robust config: map/mod will not effect regular gameplay if enabled.

Use variation fractal for ice shelf generation (instead of RND). Minimal impact. Aesthetic.

Added internal glacier to GS map.

Very significant change to map: an Internal ice sheet/glacier (over ice sea) for Standard Rules map.

1. Minor bugfix to ice generation for better consistancy between GS and Standard/R&F rules. Little or no impact to map.
2. Trivial tweak/reduction in reef.

1. Red Death compatibility.

Updated the map for Gathering Storm's Climate system: volcanos, coastal flooding (and potentially river flooding).

1. Add support for R&F but min. reef.
2. Hookup advanced settings World Age and Rainfall.

Code tidy up allowing more natural wonders

1. Made Iceland "green".
2. More coastal bias to allow civs to spawn on Iceland.