Add two new party looting modes: "owner" and "split". Add support for arrows stuck into monsters in party corpses - when a party corpse is opened, the arrows are automatically picked up by the player that shot them.
Improve insert_coins(): add floating arithmetic to pouch weight reduction calculation to prevent inserting more coins into a pouch than it can actually hold; do not insert coints into player's inventory if the coins are too heavy to carry and drop them on the ground below the player instead.