KnockbackFFA now supports killrewards and killStreak
-added more options to configurations
you can now customize the kill message which it goes to the killer
kill:

killstreak:
5message: ''
10message: ''
15message: ''
lastmessage: ''
5message is for when a player reaches to 5 killstreaks so a message goes to every online players
10message is for 10 killstreaks
15message is for 15 killstreaks
lastmessage will anounce players when someone has +15 killstreaks

no-item-drop:
no item drop is a type of boolean it should be true or false if you set it true so players cant drop items or false will makes players able to drop items.

-Added playsounds for killStreaks
-fixed bugs
-now players inventory will clear itself when the inventory owner dies
so they must to choose a kit to join.