Add 1.6 Potion Effects. Thanks @bloodsplat for pointing this out.

Bukkit-Patches/0013-Add-1.6-Potion-Effects.patch

@@ -0,0 +1,46 @@
+From d2c9c65d41116c92c03c09aa6f90ab080358ffc2 Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Mon, 8 Jul 2013 12:37:21 +1000
+Subject: [PATCH] Add 1.6 Potion Effects
+
+
+diff --git a/src/main/java/org/bukkit/potion/PotionEffectType.java b/src/main/java/org/bukkit/potion/PotionEffectType.java
+index 536e59b..855bda1 100644
+--- a/src/main/java/org/bukkit/potion/PotionEffectType.java
++++ b/src/main/java/org/bukkit/potion/PotionEffectType.java
+@@ -108,6 +108,32 @@ public abstract class PotionEffectType {
+      * Deals damage to an entity over time and gives the health to the shooter.
+      */
+     public static final PotionEffectType WITHER = new PotionEffectTypeWrapper(20);
++    // Spigot Start
++    /**
++     * Adds 4 HP points.
++     *
++     * @deprecated this is a Spigot API which may be subject to removal or
++     * change pending Bukkit addition.
++     */
++    @Deprecated
++    public static final PotionEffectType HEALTH_BOOST = new PotionEffectTypeWrapper( 21 );
++    /**
++     * Adds 4 absorption HP which absorb damage inflicted.
++     *
++     * @deprecated this is a Spigot API which may be subject to removal or
++     * change pending Bukkit addition.
++     */
++    @Deprecated
++    public static final PotionEffectType ABSORPTION = new PotionEffectTypeWrapper( 22 );
++    /**
++     * Causes the food meter to be replenished by 1 point each tick.
++     *
++     * @deprecated this is a Spigot API which may be subject to removal or
++     * change pending Bukkit addition.
++     */
++    @Deprecated
++    public static final PotionEffectType SATURATION = new PotionEffectTypeWrapper( 23 );
++    // Spigot End
+ 
+     private final int id;
+ 
+-- 
+1.8.1.2
+

CraftBukkit-Patches/0066-Add-1.6-Potion-Effects.patch

@@ -0,0 +1,28 @@
+From 77f73822be50a7878ad4caa37a92fc008aace1c1 Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Mon, 8 Jul 2013 12:37:24 +1000
+Subject: [PATCH] Add 1.6 Potion Effects
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionEffectType.java b/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionEffectType.java
+index 900dc7d..2ef2bb2 100644
+--- a/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionEffectType.java
++++ b/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionEffectType.java
+@@ -64,6 +64,14 @@ public class CraftPotionEffectType extends PotionEffectType {
+             return "POISON";
+         case 20:
+             return "WITHER";
++        // Spigot Start
++        case 21:
++            return "HEALTH_BOOST";
++        case 22:
++            return "ABSORPTION";
++        case 23:
++            return "SATURATION";
++        // Spigot End
+         default:
+             return "UNKNOWN_EFFECT_TYPE_" + handle.id;
+         }
+-- 
+1.8.1.2
+