Update CraftBukkit to Minecraft 1.5.1

src/main/java/net/minecraft/server/BlockDispenser.java

@@ -159,6 +159,8 @@ public class BlockDispenser extends BlockContainer {
                     }
                 }
             }
+
+            world.m(i, j, k, l);
         }
 
         super.remove(world, i, j, k, l, i1);