Update to Minecraft 1.8.3

By: Thinkofdeath <thinkofdeath@spigotmc.org>

paper-server/nms-patches/EntityMushroomCow.patch

@@ -1,5 +1,5 @@
---- ../work/decompile-8eb82bde//net/minecraft/server/EntityMushroomCow.java	2014-11-28 17:43:43.137707434 +0000
-+++ src/main/java/net/minecraft/server/EntityMushroomCow.java	2014-11-28 17:38:23.000000000 +0000
+--- /home/matt/mc-dev-private//net/minecraft/server/EntityMushroomCow.java	2015-02-26 22:40:22.639608139 +0000
++++ src/main/java/net/minecraft/server/EntityMushroomCow.java	2015-02-26 22:40:22.639608139 +0000
 @@ -1,5 +1,7 @@
  package net.minecraft.server;
  
@@ -8,7 +8,7 @@
  public class EntityMushroomCow extends EntityCow {
  
      public EntityMushroomCow(World world) {
-@@ -24,6 +26,15 @@
+@@ -24,6 +26,14 @@
          }
  
          if (itemstack != null && itemstack.getItem() == Items.SHEARS && this.getAge() >= 0) {
@@ -20,7 +20,6 @@
 +                return false;
 +            }
 +            // CraftBukkit end
-+            
              this.die();
              this.world.addParticle(EnumParticle.EXPLOSION_LARGE, this.locX, this.locY + (double) (this.length / 2.0F), this.locZ, 0.0D, 0.0D, 0.0D, new int[0]);
-             if (!this.world.isStatic) {
+             if (!this.world.isClientSide) {