Updated Upstream (Paper)

Upstream has released updates that appears to apply and compile correctly

Paper Changes:
a4f066cc Fix method profiler inbalance introduced in a2a9ffe (#3132)
c65dcad3 Don't delay chunk unloads during entity ticking
bc17ce69 Delay unsafe actions until after entity ticking is done - Fixes #3114
5553e6b3 Disable Sync Events firing Async errors during shutdown
e12c51d9 Use better variable for isStopping() API
586ee2bb Remove patch for MC-111480, fixed in 1.14
09a94215 Remove streams from Mob AI System
bb5c294e Fix Disabling Asynchronous Chunks
089d8356 Implement Chunk Priority / Urgency System for World Gen
fce69af7 Use dedicated thread for main thread blocking chunk loads
588b62e4 Add tick times API and /mspt command (#3102)
11de41c7 Add API MinecraftServer#isStopping (#3129)
942ff3c2 My patches are under MIT (#3130)

patches/server/0084-Add-permission-for-F3-N-debug.patch

@@ -0,0 +1,24 @@
+From 640dfe8880c47d2bbea0d179b791b63651199e5b Mon Sep 17 00:00:00 2001
+From: William Blake Galbreath <Blake.Galbreath@GMail.com>
+Date: Sat, 28 Dec 2019 04:21:54 -0600
+Subject: [PATCH] Add permission for F3+N debug
+
+---
+ src/main/java/net/minecraft/server/PlayerList.java | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
+index 6d6fbf2f50..0d985b83d8 100644
+--- a/src/main/java/net/minecraft/server/PlayerList.java
++++ b/src/main/java/net/minecraft/server/PlayerList.java
+@@ -904,6 +904,7 @@ public abstract class PlayerList {
+             } else {
+                 b0 = (byte) (24 + i);
+             }
++            if (b0 < 28 && entityplayer.getBukkitEntity().hasPermission("purpur.debug.f3n")) b0 = 28; // Purpur
+ 
+             entityplayer.playerConnection.sendPacket(new PacketPlayOutEntityStatus(entityplayer, b0));
+         }
+-- 
+2.24.0
+