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:
220bc594 #486: Add method to get player's attack cooldown
21853d39 SPIGOT-5681: Increase max plugin channel size
5b972adc Improve build process
b55e58d9 Note which custom generator is missing required method

CraftBukkit Changes:
893ad93b #650: Add method to get player's attack cooldown
ef706b06 #655: Added support for the VM tag jansi.passthrough when processing messages sent to a ColouredConsoleSender.
e0cfb347 SPIGOT-5689: Fireball.setDirection increases velocity too much
94cb030f SPIGOT-5673: swingHand API does not show to self
b331a055 SPIGOT-5680: isChunkGenerated creates empty region files
e1335932 Improve build process
a8ec1d60 Add a couple of method null checks to CraftWorld
ce66f693 Misc checkstyle fixes
8bd0e9ab SPIGOT-5669: Fix Beehive.isSedated

Spigot Changes:
2040c4c4 SPIGOT-5677, MC-114796: Fix portals generating outside world border
ab8f6b5a Rebuild patches
e7dc2f53 Rebuild patches

Spigot-API-Patches/0057-Shoulder-Entities-Release-API.patch

@@ -1,11 +1,11 @@
-From 0a6bf8a64b4096498da9a4846ec9cc81c7075f4e Mon Sep 17 00:00:00 2001
+From 22a941921b2b5577054bbc53d0d21adb7dba5877 Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Sat, 17 Jun 2017 15:04:51 -0400
 Subject: [PATCH] Shoulder Entities Release API
 
 
 diff --git a/src/main/java/org/bukkit/entity/HumanEntity.java b/src/main/java/org/bukkit/entity/HumanEntity.java
-index 6277f3928..5b5fb3034 100644
+index a7f08bb1..3adff676 100644
 --- a/src/main/java/org/bukkit/entity/HumanEntity.java
 +++ b/src/main/java/org/bukkit/entity/HumanEntity.java
 @@ -324,6 +324,26 @@ public interface HumanEntity extends LivingEntity, AnimalTamer, InventoryHolder
@@ -33,8 +33,8 @@ index 6277f3928..5b5fb3034 100644
 +    // Paper end
 +
      /**
-      * Discover a recipe for this player such that it has not already been
-      * discovered. This method will add the key's associated recipe to the
+      * Gets the current cooldown for a player's attack.
+      *
 -- 
-2.25.1
+2.26.2