This commit is a minor refactor of how arenas are resolved by name, similar to the previous arena class resolution refactoring. The difference this time around is that there is an ArenaMaster method that does most of the work for a lot of different areas of the plugin, `getArenaWithName(String)`. This method is called from well over 30 different places in the code base, making it a cornerstone of all arena resolution. Luckily, it is called primarily from places that shouldn't care _how_ an arena is resolved. Affected by this commit are all commands that resolve arenas by name, including all those not listed in the diff, because of the change to `getArenaWithName(String)` on ArenaMaster. Commands that can tab complete arena name arguments now complete slugs instead of config names.
MobArena 
MobArena is an arena-style minigame for Spigot-based Minecraft servers
Getting Started
If you don't want to compile the plugin yourself, grab a release artifact from one of these two sites:
The wiki here on Github should have all the information you need to get started using the plugin.
Getting Help
If you run into problems or need help with something, feel free to hop on the MobArena Discord server to have a chat: Instant Invite
Remember, though, that this communication channel is idle chat, which means you likely won't get a response immediately. It could take anything from a couple of seconds to a day, but your message will be seen.
Contributing
Found a bug, got a suggestion, or want to dig into the code base? There are many ways to contribute to the project!
Get started here: Contributing