+ Added "remove market item when out of stock" setting, disabled by default. When an item is bought and it's stock hits zero it won't be removed from the seller's market category automatically.
+ TransactionManager can be accessed to Markets#getTransactionManager()
+ Added a minimum item purchase requirement before you can review a market. (total amount of purchases is 1 by default, can be edited)
+ Updated the UltraEconomyAPI dependency & use new methods