Fix error when using RegistryBuilder and not specifying a max id number.

src/main/java/net/minecraftforge/registries/RegistryBuilder.java

@@ -34,7 +34,7 @@ public class RegistryBuilder<T extends IForgeRegistryEntry<T>>
     private Class<T> registryType;
     private ResourceLocation optionalDefaultKey;
     private int minId = 0;
-    private int maxId = Integer.MAX_VALUE;
+    private int maxId = Integer.MAX_VALUE - 1;
     private List<AddCallback<T>> addCallback = Lists.newArrayList();
     private List<ClearCallback<T>> clearCallback = Lists.newArrayList();
     private List<CreateCallback<T>> createCallback = Lists.newArrayList();