shuffle-positions teleportees.
Introduces a means of "tracking" both the players and the boss itself during the `shuffle-positions` ability for the sake of _not_ blocking the teleport event(s) that could potentially be blocked otherwise. Note that the change introduced in the PlayerTeleportEvent handler is not strictly necessary. The final block of code _should_ always yield the same result, as `shuffle-positions` _should_ be working solely on positions that are all inside the arena region, but the out-of-bounds check might be delayed, so we don't know for sure. It's just a safety precaution, but it really shouldn't be necessary. Fixes #792
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