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/0007-Entity-Origin-API.patch

@@ -1,4 +1,4 @@
-From fe1924a542c1c342b0c6d8e83c026b6f608216dc Mon Sep 17 00:00:00 2001
+From 0fad6352b060486f735ee07c5d5fc55c2cb67351 Mon Sep 17 00:00:00 2001
 From: Byteflux <byte@byteflux.net>
 Date: Mon, 29 Feb 2016 17:50:31 -0600
 Subject: [PATCH] Entity Origin API
@@ -66,5 +66,5 @@ index 5a8789324..3022b4a27 100644
 +    }
  }
 -- 
-2.25.1
+2.26.2