[Improved]Product Types. Now all products are either 'item' or 'command' ones. You can't mix them anymore. This will resolve issues with selling such products and will make product editing more clear. [Improved] More accurate prices for products in premade (default) shops.
[Changed] Removed hard limit (1) for items amount in virtual and chest shops. Now you can create products with fixed amount in stack per unit.
[Fixed] A memory leak + TPS drop in Chest Shop related to shop display update in unloaded chunks. [Fixed] A memory leak in Virtual Shop when using too many products with Float price. [Fixed] A bug, where you can't place signs and item frames on your chest shops.