WARNING: In this update you are required to have Vault & PlaceholderAPI running in order to use these features!

+ Added PlaceholderAPI support | Full list of placeholders: https://github.com/PlaceholderAPI/PlaceholderAPI/wiki/Placeholders#bungeecord
+ Added /stats command
+ Added custom kills placeholder | %coreessentials_kills%
+ Added custom deaths placeholder | %coreessentials_deaths%
+ Added custom total mobs killed placeholder | %coreessentials_mobkills%

NOTE: The placeholders should work with tab, WelcomeMOTD, Join title/subtitle, stats.