Revert "Project modernization (#630)"

This code was not tested and breaks in Release builds, reverting to restore
functionality of the nightly. All in-game menus do not work and generating
a world crashes.

This reverts commit a9be52c41a.

Minecraft.World/FoodItem.h

@@ -8,7 +8,7 @@ class Level;
 class FoodItem : public Item
 {
 public:
-	static const int EAT_DURATION = static_cast<int>(20 * 1.6);
+	static const int EAT_DURATION = (int) (20 * 1.6);
 
 private:
 	const int nutrition;