Demo Patch 0.53 (Next Fest Edition)

I'm releasing a patch with some small but important fixes based on feedback from Steam Next Fest participants.

This patch also prepares the game for upcoming steam cloud saves.

• Fixed incorrect compass headings and navigation directions.

• Fixed target and cargo indicators pointing the wrong way.

• Fixed the turning-direction indicator.

• Restored the rotating minimap, with smoother rotation when crossing north.

• Fixed the energy display after capacity upgrades.

• Improved performance when updating the terrain map and tracking cargo crates.

• Changed how save games are stored to prepare for Steam Cloud support in a future update. Existing saves migrate automatically.