Alpha 5 patch 9 hotfix 44

Added/changed:

• Now notifying if some buildings used warehouse as supply source when linking to a building
• Now removing warehouse from supply sources if linked to one building
• Edited some help pages
• Improved rowhouse LOD models
• Slightly reduced livestock water need when on pasture (60% instead of 80%)
• A small optimization (up to 5% on big towns)

Fixed:

• "On hold" didn't show on empty houses
• Pigsty trade delivery could get stuck after loading save
• "Protect" check didn't save for horses
• Wrong number of male/female horses in trade deal window