Update 0.4.0

Major update 0.4.0 marks the game ready for closed beta testing, as it adds the academy, an important tool for new players to get into the game.

Patch Notes:

Academy
- Added the academy, a series of 26 tutorials and challenges

Visuals
- Travois no longer play the die animation when completing a structure

Stability
- Fixed a crash that could occur when leaving a map