Drastically reduced memory consumption

Barbarian encampments removed when tile enters civ territory

Peace/war declarations on a third civ not considered trade 'gifts'

Fixed rare crash in cities when purchasing

Buildings with 'Moves to new capital when capital changes' not destroyed on city capture

Desktop executables: Max JVM RAM *actually* increased to 4GB

Notifications shown in UI in order

By unciv-loof:

- Denouncement popups with moddable messages and audio

- turn 0 Autosave