Alpha 5 patch 9 hotfix 49

[h3]Added/changed:[/h3]

• Optimized info overlays rendering
  
• Added status "Resources are on the way" for construction
  
  

[h3]Fixed:[/h3]

• Workers overlay didn't show teachers
  
• Minor UI corrections
  
• Crash on load in some cases
  
• Mysterious symbols on number inputs
  
• Construction workers were a bit too chaotic
  
• Fallow field could be still plown from last year in spring
  
• Cartwrights could steal horses from saltworks