Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
b999860d SPIGOT-2304: Add LootGenerateEvent

CraftBukkit Changes:
77fd87e4 SPIGOT-2304: Implement LootGenerateEvent
a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent
41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item

Spigot-API-Patches/0110-PlayerReadyArrowEvent.patch

@@ -1,4 +1,4 @@
-From d5f5877c0b11a8379a0d9efdb9dfba3293d7c170 Mon Sep 17 00:00:00 2001
+From dd28b91b6be56103ed65db1b8169d2f8a8f585f2 Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Mon, 18 Jun 2018 01:09:27 -0400
 Subject: [PATCH] PlayerReadyArrowEvent
@@ -106,5 +106,5 @@ index 000000000..5d04a22fd
 +    }
 +}
 -- 
-2.25.1
+2.26.2