Added a config option to make the /cleanchests applies on online players' enderchests (set to true by default)
You can refresh your config and enjoy the update

Improved a lot the way of cleaning the chests, making it as less laggy as possible
Fixed the way i counted the cleaned chests. Before, it shown the number of chests that could have been cleaned and now it only shows the cleaned one

Enjoy the update ! ^^

- Added /cleanchests <addItem> to make the way of adding items to the list easier
- Added some messages in config.yml, you can delete the file and restart to get the new one
- Fixed a bug with the list that made the items not always disappear

Enjoy this update