Fix ORDERED arena order only ever giving one arena. This closes #98, as that has also been tested with the debugging messages added.
Merge branch 'develop' into arena-caching
Add catching of case where origin is null, as that is now allowed by the API. Also, remove the origin boundary from skyblock-warriors.yml, as this makes it no longer required for built-in arenas.
Move arena config.yml and cache.blocks files to src/main/arenas/
Add water-warriors arena configuration to default arenas