Added a timer for the command '/kb leave' to prevent players from abusing it to avoid death, you can customize the duration using 'Leave-Command-Timer' in config.yml or completely disable it by setting it to 0
Fixed an error that occured when external plugins like TitleManager request placeholders for a player before that player is loaded in kitbattle
Removed the block on using % in chat messages when 'Show-Rank-In-Chat' was enabled