Merge branch 'master' into pre/1.13

* master:
  Fix bug in last patch
  Ensure chunks are always loaded on hard position sets
  Improve Watchdog Early Warning Feature - Closes #1319
  Allow disabling armour stand ticking

Spigot-API-Patches/Provide-Chunk-Coordinates-as-a-Long-API.patch

@@ -7,7 +7,7 @@ Allows you to easily access the chunks X/z as a long, and a method
 to look up by the long key too.
 
 diff --git a/src/main/java/org/bukkit/Chunk.java b/src/main/java/org/bukkit/Chunk.java
-index 079b9feb..c75bce07 100644
+index 079b9febe..c75bce07a 100644
 --- a/src/main/java/org/bukkit/Chunk.java
 +++ b/src/main/java/org/bukkit/Chunk.java
 @@ -0,0 +0,0 @@ public interface Chunk {
@@ -27,7 +27,7 @@ index 079b9feb..c75bce07 100644
       * Gets the world containing this chunk
       *
 diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
-index b8381d2e..73825a37 100644
+index a9054d8f5..53517dab1 100644
 --- a/src/main/java/org/bukkit/World.java
 +++ b/src/main/java/org/bukkit/World.java
 @@ -0,0 +0,0 @@ public interface World extends PluginMessageRecipient, Metadatable {