Updated Upstream (Bukkit/CraftBukkit/Spigot)

Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
bbfd13dd Hyperlink 'Events' in raid event package documentation
b2095bed SPIGOT-5413: Add TrustedPlayer API for foxes
1bf1f3f4 Block trace methods do not require hash sets
abf0cfdc Javadoc improvements per checkstyle
c4a2b425 Add TimeSkipEvent

CraftBukkit Changes:
817116de SPIGOT-5413: Add TrustedPlayer API for foxes
062680a8 SPIGOT-5467: Calm down bees that cannot exit hive
75fac431 SPIGOT-5472: Spurious warning when using clone command on tile entities
85106731 SPIGOT-5471: Allow empty title/author for books
2d9db47f Add TimeSkipEvent
384225c2 Add thread name to TerminalConsoleWriterThread

Spigot Changes:
05bb8bcf Postpone stopping the watchdog until the server is completely stopped
18e2b9be Add package-info.java for Spigot APIs

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

@@ -8,7 +8,7 @@ limited synchronized portions to allow much higher concurrency in
 MetadataStore as well as far less locking, especially on reads
 
 diff --git a/src/main/java/org/bukkit/metadata/MetadataStoreBase.java b/src/main/java/org/bukkit/metadata/MetadataStoreBase.java
-index 027953499..b3d85d973 100644
+index baf85022..d363d517 100644
 --- a/src/main/java/org/bukkit/metadata/MetadataStoreBase.java
 +++ b/src/main/java/org/bukkit/metadata/MetadataStoreBase.java
 @@ -0,0 +0,0 @@ import org.bukkit.plugin.Plugin;
@@ -56,8 +56,8 @@ index 027953499..b3d85d973 100644
          return metadataMap.containsKey(key);
      }
 @@ -0,0 +0,0 @@ public abstract class MetadataStoreBase<T> {
+      * @see MetadataStore#removeMetadata(Object, String,
       *     org.bukkit.plugin.Plugin)
-      * @throws IllegalArgumentException If plugin is null
       */
 -    public synchronized void removeMetadata(@NotNull T subject, @NotNull String metadataKey, @NotNull Plugin owningPlugin) {
 +    public void removeMetadata(@NotNull T subject, @NotNull String metadataKey, @NotNull Plugin owningPlugin) { // Paper
@@ -80,8 +80,8 @@ index 027953499..b3d85d973 100644
      }
  
 @@ -0,0 +0,0 @@ public abstract class MetadataStoreBase<T> {
-      * @see MetadataStore#invalidateAll(org.bukkit.plugin.Plugin)
       * @throws IllegalArgumentException If plugin is null
+      * @see MetadataStore#invalidateAll(org.bukkit.plugin.Plugin)
       */
 -    public synchronized void invalidateAll(@NotNull Plugin owningPlugin) {
 +    public void invalidateAll(@NotNull Plugin owningPlugin) { // Paper