ShowItem 1.2.15 - Fix vanished players and add custom item icon support
Don't tell players that a player they can't see saw their item shown with the command
Add support for the unbreaking tag that is used by some plugins to add custom items to the icon mapping library. This can be used to add separate icons for items with the unbreaking tags with the material:unbreaking:damage syntax. (The author of the plugin still needs to provide compatible font sheets with icons for his custom items!) This only works with Spigot or CraftBukkit above 1.11!