Commands overhaul + Selective loot + Antimulticlient Coordinator

Completely overhauled commands layout, each command splitted in Java classes.
Optimized "ranks" command, no more calling the DB to get ranking info.
Implemented a mechanic where mobs only spawns loots that are visible/collectable by the player's party.
Implemented a server flag which sets whether explorers, cygnus and legends are allowed to share the cash shop inventory or not.
Implemented support for dynamic server rates at bootup. Rates can now be assigned at the configuration.ini file.
Devised the anti-multiclient login coordinator feature. Besides multiclient attempts by the same machine, it also prevents unauthorized login attempts into an account.
Fixed PQ instances being forcefully closed even when party leader reassignment upon logout is available.
Fixed mob statis not concurrently protected.

src/net/server/world/World.java

@@ -92,7 +92,7 @@ import net.server.audit.locks.factory.MonitoredReentrantLockFactory;
  */
 public class World {
 
-    private int id, flag, exprate, droprate, mesorate, questrate;
+    private int id, flag, exprate, droprate, mesorate, questrate, travelrate;
     private String eventmsg;
     private List<Channel> channels = new ArrayList<>();
     private Map<Integer, Byte> pnpcStep = new HashMap<>();
@@ -151,7 +151,7 @@ public class World {
     private ScheduledFuture<?> charactersSchedule;
     private ScheduledFuture<?> marriagesSchedule;
     
-    public World(int world, int flag, String eventmsg, int exprate, int droprate, int mesorate, int questrate) {
+    public World(int world, int flag, String eventmsg, int exprate, int droprate, int mesorate, int questrate, int travelrate) {
         this.id = world;
         this.flag = flag;
         this.eventmsg = eventmsg;
@@ -159,6 +159,7 @@ public class World {
         this.droprate = droprate;
         this.mesorate = mesorate;
         this.questrate = questrate;
+        this.travelrate = travelrate;
         runningPartyId.set(1);
         runningMessengerId.set(1);
         
@@ -336,7 +337,19 @@ public class World {
     public void setQuestRate(int quest) {
         this.questrate = quest;
     }
-
+    
+    public int getTravelRate() {
+        return travelrate;
+    }
+    
+    public void setTravelRate(int quest) {
+        this.travelrate = quest;
+    }
+    
+    public int getTransportationTime(int travelTime) {
+        return (int) Math.ceil(travelTime / travelrate);
+    }
+    
     public void loadAccountCharactersView(Integer accountId, List<MapleCharacter> chars) {
         SortedMap<Integer, MapleCharacter> charsMap = new TreeMap<>();
         for(MapleCharacter chr : chars) {
@@ -1825,5 +1838,6 @@ public class World {
         players = null;
         
         clearWorldData();
+        System.out.println("Finished shutting down world " + id + "\r\n");
     }
 }