Recode a lot of the code and make the plugin a lot less laggier.
If you have already created arenas using this plugin, the arenas wont work unless you delete the "protection" folder in the plugin folder in the server and recreate those arenas.

- Fixed the laggy issue
- Fixed the issue that it cannot protect fire igniting

- Added some messages when the plugin is enabling
- Improved some code to prevent it lagging too much
- Added a display name to the wand
- Improved the help message
- Bug fixed