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/0111-Debug-stick-should-not-update-neighbors.patch

@@ -0,0 +1,28 @@
+From 75a1b14282dee435f54f1b3798482afadd05e3aa Mon Sep 17 00:00:00 2001
+From: William Blake Galbreath <Blake.Galbreath@GMail.com>
+Date: Sat, 4 Apr 2020 17:16:30 -0500
+Subject: [PATCH] Debug stick should not update neighbors
+
+---
+ src/main/java/net/minecraft/server/ItemStack.java | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
+index 6b45bc17cf..92d9ddf6a7 100644
+--- a/src/main/java/net/minecraft/server/ItemStack.java
++++ b/src/main/java/net/minecraft/server/ItemStack.java
+@@ -185,6 +185,11 @@ public final class ItemStack {
+                 if (this.getItem() == Items.BONE_MEAL) {
+                     world.captureTreeGeneration = true;
+                 }
++                // Purpur start
++                else if (this.getItem() == Items.DEBUG_STICK) {
++                    world.captureBlockStates = false;
++                }
++                // Purpur end
+             }
+             Item item = this.getItem();
+             EnumInteractionResult enuminteractionresult = item.a(itemactioncontext);
+-- 
+2.24.0
+