Major plugin overhaul & optimizations:
Changed data type to ProtoStorage
Added configurable blacklisted skins (Some plugins are using custom skin ids for items in order to trigger different actions, you can blacklist them in order to not interfere with Chest Stacks)
Added language support
Added permission based chest stacking amount
Added checks to stop stacking chests through walls/ceilings
Fixed chest stacking counter
Fixed chest stacking checks
Only update if you are willing to delete the data & config file, preferably after a wipe