+ purchase messages display correct qty when buying partial stacks
+ create auction player during sell command if missing
+ stat manager takes an OfflinePlayer instead
+ added more placeholders
+ fixed format bug regarding tailing zeros
+ transaction list shows actual sold item rather than the paper

added placeholders: auctionhouse_total_money_earned, auctionhouse_total_money_spent, auctionhouse_total_items_listed, auctionhouse_total_money_expired, auctionhouse_total_money_sold