The naga desperately need an art update but its a large undertaking since I'd like to represent all six weapons they can theoretically carry. This includes expanding their sprite to slight greater than the 32x32 they occupy now. It will likely take a bit so these fixes are just to patch minor issues in the meantime.

- Changed their active season to autumn only
- Changed their pack animals to be crocodiles to allow their caravans to path through water (hopefully)

Changed the preview image.

Modified settlement parameters.