Updated Upstream (Bukkit/CraftBukkit/Spigot) (#2415)

* fixup patch and rebuild

* 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:
bde198c9 SPIGOT-5246: PlayerQuitEvent.get/setQuitMessage() is incorrectly marked as NotNull
24ad5a79 SPIGOT-5240: Vector.angle not valid for angles very close to each other
a143db9a SPIGOT-5231: ShotAtAngle API for Fireworks
10db5c3d SPIGOT-5226: Update Javadoc of PlayerDeathEvent

CraftBukkit Changes:
1ec1b05e SPIGOT-5245: Unneeded cast to WorldNBTStorage in CraftWorld#getWorldFolder
e5e8eec2 SPIGOT-5241: setAttributeModifiers does not work on untouched stack
803eaa31 SPIGOT-5231: ShotAtAngle API for Fireworks
7881d2ae SPIGOT-5237: Horses, pigs do not drop their inventory
06efc9ec Don't accept connections until all plugins have enabled
da62a66a SPIGOT-5225: World handle isn't closed if world is unloaded without saving
104b3831 SPIGOT-5222: Cannot get Long values from Entity memory
f0b3fe43 SPIGOT-5220: Server CPU usage reaches 100% when stdin is null

Spigot Changes:
e5b1b5db SPIGOT-5235: Destroy expired area effect clouds / fireworks that are inactive
cbcc8e87 Make region files more reliable to write to
8887c5f4 Remove redundant late-bind option
dac29063 Rebuild patches

* Preserve old flush on save flag for reliable regionfiles

Originally this patch was in paper

* Fix some issues with the death event

- Entities potentially entering a glitched state to the client where
they appear to be falling over
- Donkeys losing their chest if the event was cancelled (only an
issue since the upstream merge)
- Some wither death logic running for an entity killed by a wither

Spigot-Server-Patches/force-entity-dismount-during-teleportation.patch

@@ -20,7 +20,7 @@ this is going to be the best soultion all around.
 Improvements/suggestions welcome!
 
 diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
-index 19bbcc043..75da08596 100644
+index 19bbcc043f..75da085969 100644
 --- a/src/main/java/net/minecraft/server/Entity.java
 +++ b/src/main/java/net/minecraft/server/Entity.java
 @@ -0,0 +0,0 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
@@ -72,7 +72,7 @@ index 19bbcc043..75da08596 100644
              if (event.isCancelled()) {
                  return false;
 diff --git a/src/main/java/net/minecraft/server/EntityHuman.java b/src/main/java/net/minecraft/server/EntityHuman.java
-index 8887c24a9..5d3e48ba6 100644
+index 8887c24a9b..5d3e48ba61 100644
 --- a/src/main/java/net/minecraft/server/EntityHuman.java
 +++ b/src/main/java/net/minecraft/server/EntityHuman.java
 @@ -0,0 +0,0 @@ public abstract class EntityHuman extends EntityLiving {
@@ -91,7 +91,7 @@ index 8887c24a9..5d3e48ba6 100644
      }
  
 diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
-index 37ff76486..93ee1feb9 100644
+index 1e53af2cce..d23968a7c9 100644
 --- a/src/main/java/net/minecraft/server/EntityLiving.java
 +++ b/src/main/java/net/minecraft/server/EntityLiving.java
 @@ -0,0 +0,0 @@ public abstract class EntityLiving extends Entity {
@@ -112,7 +112,7 @@ index 37ff76486..93ee1feb9 100644
              this.B(entity);
          }
 diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
-index 965f1c279..0a6fdd383 100644
+index 965f1c279b..0a6fdd383f 100644
 --- a/src/main/java/net/minecraft/server/EntityPlayer.java
 +++ b/src/main/java/net/minecraft/server/EntityPlayer.java
 @@ -0,0 +0,0 @@ public class EntityPlayer extends EntityHuman implements ICrafting {