HUGE update - v1.2.4

==== Source Changes: ====
* + Added CHANGELOG.txt
* + Added README.txt (still empty lol)
* - Removed README (no filetype extension)
* - Removed a lot of unused imports
* ~ Merged listeners into one file
* ~ Organized everything much better
* ~ Completely redesigned the plugin's structure
* ~ Lots of optimization
* ~ Enable and Disable messages now grab author and version from
plugin.yml instead of hardcoding

==== Game Changes: ====
* + Added commands "/wl version", "/wl setlevel" and "/wl reload"
* + Added support for SuperPerms-based permission plugins
* + Added partial support for RPG Items (still much to do)
* + Added support for CUSTOM level groups
* + Added configuration for description and exp bar colors
* + Added random levels to crafting
* - Removed triangles next to Level and EXP bar
* - Removed console spam
* - Removed bugs with enchanted items
* - Removed bug where some items' names changed to "null"
* ~ Fixed problem where spawners were not allowed regardless of config