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:
c23d391f Update documentation of BlockPhysicsEvent
14fcd896 SPIGOT-4258: Add Player.updateCommands method

CraftBukkit Changes:
15da7067 SPIGOT-4258: Add Player.updateCommands method

Spigot Changes:
2b0e71c7 Rebuild patches

Spigot-API-Patches/Player-affects-spawning-API.patch

@@ -5,13 +5,14 @@ Subject: [PATCH] Player affects spawning API
 
 
 diff --git a/src/main/java/org/bukkit/entity/Player.java b/src/main/java/org/bukkit/entity/Player.java
-index d3965bb3..4412f6ee 100644
+index adde0f97a..f5c332fc3 100644
 --- a/src/main/java/org/bukkit/entity/Player.java
 +++ b/src/main/java/org/bukkit/entity/Player.java
 @@ -0,0 +0,0 @@ public interface Player extends HumanEntity, Conversable, CommandSender, Offline
       */
      public String getLocale();
  
++    // Paper start
 +    /**
 +     * Get whether the player can affect mob spawning
 +     *
@@ -25,8 +26,9 @@ index d3965bb3..4412f6ee 100644
 +     * @param affects Whether the player can affect mob spawning
 +     */
 +    public void setAffectsSpawning(boolean affects);
++    // Paper end
 +
-     // Spigot start
-     public class Spigot extends Entity.Spigot
-     {
+     /**
+      * Update the list of commands sent to the client.
+      * <br>
 --