There have been a few quite important bug fixes and a few changes in code along with a few improvements.

No config changes made whatsoever.

• Changed version to 0.4.5
• Changes in voidchest sell mode:
  • Now, whenever you reload the plugin using /voidchest reload a message will be displayed in console saying whether there were some invalid material types in your shop.yml
    • This happens ONLY if you have voidchest as the sell mode.
  • Fixed a NullPointerException spamming the console if you happened to have an invalid material type in shop.yml
• Changes in essentials sell mode:
  • Changed the ignore-item-meta logic for essentials so as to work properly. In previous versions, no matter whether it was true or false it'd simply count the item as a sellable.
• VoidChest will now be using Maven. (This is my first project which I run maven so if you encounter any issues, let me know and I'll handle them)
• Fixed a bug with voidchest auto save function where if items were removed from the custom inventory and the plugin were to be reloaded with either a restart/command/reload command, those items would be set back to the inventory (causing duplication).
• Auto update interval changed to 75 minutes (1 hour + 15 minutes).