This update fixes some issues (in particular several spells not saving upgrade progress), but mainly this update is for Engineers.
- Add engineering brush selection. Shift+right click to change brushes.
- Allow different map scales (/mgive brush:map:128)
- Add custom icons for special brushes
- Add custom icons for all spells
- Fix progression to Engineer/Architect (undo spell changed to rollback)
- Removed the Kamikazee, Pyramid, Stalactite, Storm and Shields spells
- Some fixes to tracking of spell casts for upgrades
- Add config option to enable/disable PS field "cast anything" for owner