A small, major update! Fixed some critical bugs from the jam version, and improved the graphical cohesion somewhat.

- Textures
- - Towers were retextured to better match the pixel art of units
- - Downloaded assets were "pixellized" (not final)
- - Tweaked lighting and camera

- Added skybox

- Patrons leave when they reach 0 gold

- Rearranged UI
- - Patron buttons now match how many patrons can fit in your shop
- - Added Tower progress bar: Goes up and down with standing towers, a second bar tells the time until another tries to spawn or the time until a game over (when all towers are up)

- Tweaked unit parameters
- Fixed unit attack frequency bug
- Fixed shop gold bug
- Decreased starting gold