Update to Minecraft 1.11

By: md_5 <git@md-5.net>

paper-server/nms-patches/RecipeArmorDye.patch

@@ -1,8 +1,8 @@
 --- a/net/minecraft/server/RecipeArmorDye.java
 +++ b/net/minecraft/server/RecipeArmorDye.java
-@@ -4,9 +4,13 @@
+@@ -3,9 +3,13 @@
+ import com.google.common.collect.Lists;
  import java.util.ArrayList;
- import javax.annotation.Nullable;
  
 -public class RecipeArmorDye implements IRecipe {
 +public class RecipeArmorDye extends ShapelessRecipes implements IRecipe { // CraftBukkit - added extends
@@ -15,4 +15,4 @@
 +    // CraftBukkit end
  
      public boolean a(InventoryCrafting inventorycrafting, World world) {
-         ItemStack itemstack = null;
+         ItemStack itemstack = ItemStack.a;