Take random light updates option into account before relighting a chunk on its first tick.

CraftBukkit-Patches/0041-Allow-Disabling-of-Random-Lighting-Updates.patch

@@ -1,9 +1,22 @@
-From b2ea34ea89dc267a6d37767a937693c4915a34ae Mon Sep 17 00:00:00 2001
+From b41a6f127eb5532a265a8ee45a630d65ce575dc0 Mon Sep 17 00:00:00 2001
 From: md_5 <md_5@live.com.au>
 Date: Sat, 22 Jun 2013 16:12:02 +1000
 Subject: [PATCH] Allow Disabling of Random Lighting Updates
 
 
+diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
+index 3bcca91..efe7ca5 100644
+--- a/src/main/java/net/minecraft/server/Chunk.java
++++ b/src/main/java/net/minecraft/server/Chunk.java
+@@ -895,7 +895,7 @@ public class Chunk {
+         }
+ 
+         this.m = true;
+-        if (!this.lit && this.done) {
++        if (!this.lit && this.done && this.world.spigotConfig.randomLightUpdates) { // Spigot - also use random light updates setting to determine if we should relight
+             this.p();
+         }
+     }
 diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
 index 6965e82..6997d03 100644
 --- a/src/main/java/net/minecraft/server/World.java