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/Chicken.cpp

@@ -143,7 +143,7 @@ shared_ptr<AgableMob> Chicken::getBreedOffspring(shared_ptr<AgableMob> target)
 	// 4J - added limit to chickens that can be bred
 	if( level->canCreateMore( GetType(), Level::eSpawnType_Breed) )
 	{
-		return std::make_shared<Chicken>(level);
+		return shared_ptr<Chicken>(new Chicken(level));
 	}
 	else
 	{