v1.0 release

Upgraded Z2 to become a base ruleset. That means it no longer relies on G&K assets.

Map updated to version z10. Cave tiles with lava flows have been honed. Deep ocean tiles also.

New "Slog mud" and "Forage" added to Villager actions, including tile and icon graphics.

Mountains gained a slightly higher movement cost.

v0.9 release

Completely rebuilt tech tree. New 'Deep Ocean' tiles. Other updates that correspond to the new tech tree.

Probably last version remaining as an extension mod.

v0.8 release

First release of a release!

Doing so retroactively due to #10268