Added isPvpEnabled() on Arena

src/com/garbagemule/MobArena/Arena.java

@@ -1064,6 +1064,11 @@ public class Arena
         return world;
     }
     
+    public boolean isPvpEnabled()
+    {
+        return pvp;
+    }
+
     public void setBossWave(BossWave bossWave)
     {
         this.bossWave = bossWave;