Update Paper to 1.13 proper - THIS IS STILL HIGHLY UNSTABLE

DO NOT RUN ON PRODUCTION SERVERS!!! Use Backups!!

Spigot-Server-Patches/Custom-replacement-for-eaten-items.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Custom replacement for eaten items
 
 
 diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
-index 00cd44a72..bcbc77ad2 100644
+index dd48c6af0..acd8034e8 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 {
@@ -33,13 +33,14 @@ index 00cd44a72..bcbc77ad2 100644
 +                itemstack = CraftItemStack.asNMSCopy(event.getReplacement());
 +            }
 +            // Paper end
-             this.a(this.cT(), itemstack);
+             this.a(this.cU(), itemstack);
              // CraftBukkit end
-             this.cZ();
+             this.da();
 +            // Paper start - if the replacement is anything but the default, update the client inventory
 +            if (this instanceof EntityPlayer && !com.google.common.base.Objects.equal(defaultReplacement, itemstack)) {
 +                ((EntityPlayer) this).getBukkitEntity().updateInventory();
 +            }
++            // Paper end
          }
  
      }