* Symmetry Mode! Build boats twice as fast! Press spacebar to toggle while building.
* Tutorial entry for symmetry mode.
* Note: symmetry mode does not duplicate energy sails.
* Generally improved build snapping consistency. Should reduce surprise deconstructions.
* Improved the symmetry of many build in boat blueprints.
* Fixed: Jellyfish spawn bug. Way more jellyfish now.
* Fixed: errors when cloning and rotating some complex pieces like Trireme Sails.
* Fixed: That stupid bug where the boat would fall from the sky upon entering build mode. I got you, stupid bug.
* Fixed: Deleted energy sails were producing save file and log garbage.
* Fixed: Energy sail build cursor image.
* Fixed: Highlighted pieces not unhighlighting when exiting building.
* Fixed: First grabbed piece sometimes didn’t want to snap.
* Fixed: Shifted some islands to make it harder to get stuck under them.
* Upgraded to Unity 2017.4.8
