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/0122-PlayerElytraBoostEvent.patch

@@ -1,4 +1,4 @@
-From 3dce11e6ed387ab8dde375eba3768eac4b62a396 Mon Sep 17 00:00:00 2001
+From cd43998087a617510cac0516b62db5f5274a0662 Mon Sep 17 00:00:00 2001
 From: BillyGalbreath <Blake.Galbreath@GMail.com>
 Date: Sat, 21 Jul 2018 01:59:53 -0500
 Subject: [PATCH] PlayerElytraBoostEvent
@@ -96,5 +96,5 @@ index 000000000..e9a76a25f
 +    }
 +}
 -- 
-2.25.1
+2.26.2