NOT FINISHED!!! Current Progress on 1.13-pre7 update

This work is 100% unfinished. I am pushing it up so that we as a team
can work on this update.

Do not try to use this branch. You will fail.

Spigot-Server-Patches/Remove-invalid-mob-spawner-tile-entities.patch

@@ -5,11 +5,11 @@ Subject: [PATCH] Remove invalid mob spawner tile entities
 
 
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index ca5a42377..50113c303 100644
+index 3b97981bc..36ea4ad47 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
-@@ -0,0 +0,0 @@ public class Chunk {
-             tileentity.A();
+@@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
+             tileentity.z();
              this.tileEntities.put(blockposition, tileentity);
              // CraftBukkit start
 +            // Paper start - Remove invalid mob spawner tile entities
@@ -18,5 +18,5 @@ index ca5a42377..50113c303 100644
 +            // Paper end
          } else {
              System.out.println("Attempted to place a tile entity (" + tileentity + ") at " + tileentity.position.getX() + "," + tileentity.position.getY() + "," + tileentity.position.getZ()
-                 + " (" + org.bukkit.craftbukkit.util.CraftMagicNumbers.getMaterial(getBlockData(blockposition).getBlock()) + ") where there was no entity tile!");
+                 + " (" + getType(blockposition) + ") where there was no entity tile!");
 --