1.15.2 update (#2887)

Functional GUI fix added by billygalbreath

Spigot-API-Patches/0002-Add-FastUtil-to-Bukkit.patch

@@ -1,4 +1,4 @@
-From 900d1808e8b2df014a6f10a66d8293484735f9dc Mon Sep 17 00:00:00 2001
+From c34a0b40b799e91263262c942be9994f6aaed9b7 Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Fri, 1 Apr 2016 00:02:47 -0400
 Subject: [PATCH] Add FastUtil to Bukkit
@@ -6,7 +6,7 @@ Subject: [PATCH] Add FastUtil to Bukkit
 Doesn't expose to plugins, just allows Paper-API to use it for optimization
 
 diff --git a/pom.xml b/pom.xml
-index aef4ec33d..2daee11a2 100644
+index 8c443c52..a540adef 100644
 --- a/pom.xml
 +++ b/pom.xml
 @@ -49,6 +49,12 @@
@@ -23,5 +23,5 @@ index aef4ec33d..2daee11a2 100644
              <groupId>commons-lang</groupId>
              <artifactId>commons-lang</artifactId>
 -- 
-2.22.0
+2.25.0.windows.1