Revert "Fix minetest.facedir_to_dir when param2 is 5 or 7."

This reverts commit 4e5760a5416cbca6945b1b4484cbd96bea7b250c.
Fix InventoryList reading order

Lua does not guarantee that the indexes of a table will be in numerical order.
Initialize world before creating BanManager and RollbackManager
Fix enum element name in Lua HUD code (position vs. pos)
Fix exception caused by destroying sockets on Server shutdown
Bump version to 0.4.9