For some reason items might corrupt in the encoding and decoding process leading to invalid YAML strings. There's also another issue of the server not being able to load certain old itemstacks. (seems to be especially an issue with old entity types)
This is required as we now move items between inventories instead of individually removing and adding. This basically adds the stock represented by the admin shop sign to the AdminInventory so all transactions should always be possible.
This also uses the Bukkit API again instead of spigot (it doesn't use anything from spigot) and also makes sure to exclude any other Bukkit version from the dependency tree
This is due to a bug in CraftBukkit not properly supporting localised/translatable display names when serialising item meta.
This also adds/improves the message when no valid item ID could be generated.
This adds separate permissions for accessing, creating and destroying of shops.
It also adds a config entry to allow using of a shop even if someone have access to it due to their permissions.
The InventoryMoveItemEvent is now only used for Hopper Minecarts, other blocks that could move items (Hoppers and Droppers) are checked on place. That way players that have access to a shop can just use the blocks normally but other players can't place them.
This is necessary due to the extended length of some material names in 1.13 as they directly include the variation into the material where previously only the data value was used. (E.g. BLACK_STAINED_GLASS_PANE) By removing the spaces and using uppercase characters to separate parts the string stays both readable to the user and parseable by the plugin. It should also be backwards compatible with the old format. (At least with 1.13 material names)
This uses hardcoded widths for the main characters used in Minecraft and might not be precise for some characters but better than the previous 15 char hard limit.
This also makes it possible to input IDs on the sign that are longer than the max sign letters that the plugin uses as that just gets auto corrected back down to the correct amount.
This includes a new price_precision config entry to set the amount of decimal places to allow on a shop sign (set to 2 by default). Thanks to @andrewkm for this idea.
It also fixes an issue where a zero inside the decimal places was removed instead of it's end and also removes the point and zeros from prices that only have trailing zeros to avoid confusion (e.g. in languages that use the decimal point for thousands)
This uses a cache for players that we haven't found before so to not check the cache too often and also checks if the online mode of the queried OfflinePlayer matches the server's mode (gotten from the first logged-in player in order to be compatible with BungeeCord requiring the server to be in offline-mode.
