1. Added new command /vampire arenas (print enabled arenas). Please update language file (added new string
list-of-arenas: 'List of available arenas:')
2. Added bStat metrics (you can disable bstats in bStats folder)
3. Fixed error, when sign removed in world, but config value creates error when try update sign
4. Fixed error PlayerInteractIvent (or zip file closed on spigot forks).