Revamped buff system + skill cd/buff schedule rework

Completely rearranged buff system (system can smartly check for the best
statup to take effect for it's duration, or the server can be flagged to
act as usual). Refactored scheduling system for buffs expiration and
cooldowns to use one single thread per player rather than one per
instance.

src/net/server/worker/PetFullnessWorker.java

@@ -0,0 +1,40 @@
+/*
+	This file is part of the OdinMS Maple Story Server
+    Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
+		       Matthias Butz <matze@odinms.de>
+		       Jan Christian Meyer <vimes@odinms.de>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package net.server.worker;
+
+import net.server.world.World;
+
+/**
+ * @author Ronan
+ */
+public class PetFullnessWorker extends BaseWorker implements Runnable {
+    
+    @Override
+    public void run() {
+        wserv.runPetSchedule();
+    }
+    
+    public PetFullnessWorker(World world) {
+        super(world);
+    }
+}