1.15.2 update (#2887)

Functional GUI fix added by billygalbreath

Spigot-API-Patches/0030-Reduce-thread-synchronization-in-MetadataStoreBase.patch

@@ -1,4 +1,4 @@
-From 05ccd4a953088abcf6c53aa0c838659284e9c092 Mon Sep 17 00:00:00 2001
+From afee8fb7282413c3d47adc3b5c697f1eb2cf1036 Mon Sep 17 00:00:00 2001
 From: crast <contact@jamescrasta.com>
 Date: Sat, 1 Jun 2013 13:52:30 -0600
 Subject: [PATCH] Reduce thread synchronization in MetadataStoreBase
@@ -89,5 +89,5 @@ index baf85022..d363d517 100644
          for (Map<Plugin, MetadataValue> values : metadataMap.values()) {
              if (values.containsKey(owningPlugin)) {
 -- 
-2.24.1
+2.25.0.windows.1