What's new:
- You can't place a blueprint in the air and under the surface anymore
- A blueprint will be colored in red if you are trying to build it in the air or under the surface
- Fixed missing stairs and other blocks of the blueprints
- Pawns now build blueprints much faster (they don't need to spend their time on roofs)
- Now you can hide current tasks in the GUI
- Added some hints in the GUI
- Fixed some other small bugs