Update DAntiPvPLeaverListener.java
Update Metrics.java
Update NPCUtils.java
Update NPCManager.java
Update HumanNPC.java
Update NPC.java
Update BServer.java
Update BWorld.java
Update NPCEntity.java
Update NPCNetHandler.java
Update NpcEntityTargetEvent.java
Update NPCNetworkManager.java
Update Node.java
Merge pull request #27 from Serilum/master

Update to 1.5.2, thx fo Serilum